|
Lead nitrate can be decomposed by heating. What is the percent yield of the decomposition reaction if 9.9 g Pb(NO) are heated to give 5.5 g of PbO?
2?
 3500
|
| |
|
|
Which contains more atoms 1 00 mol H2O2 1 00 mol C2H6 or 1 00 mol CO Explain?
1300
|
| |
|
|
What gas is formed when CuSO4 and Zn react?
1112
|
| |
|
|
How many molecules of NH3 produced form H2?
823
|
| |
|
|
If you were to combine 80g of oxygen with some hydrogen how much hydrogen would you need to completey use up all of the oxygen?
701
|
| |
|
|
The ratio of carbon atoms to hydrogen atoms to oxygen atoms in a molecule of dicyclohexyl maleate is 4 to 6 to 1. what is its molecular formula if its?
674
|
| |
|
|
How many times faster does helium gas effuse than oxygen?
624
|
| |
|
|
WHAT AMOUNT OF OXYGEN WILL BE REQUIRED FOR THE COMPLETE COMBINATION OF 3 MOLES OF METHANE ACCORDING TO THE EQUATION CH4 2O2?
600
|
| |
|
|
How many moles is each of the following a 15 5g SiO2 b 0 0688g ALCL c 79 3g CL2 d 5 96g KOH e 937g CA C2H3O2 2 f 0 800g CA?
415
|
| |
|
|
Which term best describes the statement given below If s t and t u then s u?
410
|
| |
|
|
What is cto gold?
400
|
| |
|
|
How many moles of oxygen atoms are present in 3 58 mol diphosphorus pentoxide P2O5?
379
|
| |
|
|
Why Crystals of CuSO45H2O is blue?
368
|
| |
|
|
How many grams of hydrogen are produced if 24 0 g of zinc reacts?
327
|
| |
|
|
A compound contains 40.0% C, 6.71% H, and 53.29% O by mass. The molecular weight of the compound is 60.05 amu. The molecular formula of this compound?
312
|
| |
|
|
HOW LONG FOR THE HOLE OF A BOIL TO CLOSE?
308
|
| |
|
|
What mass of oxygen gas is required for the complete combustion of g of?
307
|
| |
|
|
What is the concentration of a solution prepared by dissolving 225 L of HCL at 37 degrees C and 89 6 kPa in 5 25L of water?
300
|
| |
|
|
How many grams of NH3 can be produced from 3 50 moles of N2?
300
|
| |
|
|
If pressue exerted by a gas at 27C in a vessel of volume 0 050L is 4 00 atm how many moles of the gas are pressure?
225
|
| |
|
|
Is the percent by mass of copper in cuso2 5h2o the same as in cuso4?
225
|
| |
|
|
Number of Ni atoms in 3.4 moles?
225
|
| |
|
|
According to the following equation: 2H2 O2 --> 2H2O
How many grams of water are produced when 19.0 grams of hydrogen is consumed?
214
|
| |
|
|
When 2 00 moles of H2O react how many grams of NH3 are produced according to the following balanced equation Mg3N2 s 6 H2O l 3 Mg OH 2 s?
208
|
| |
|
|
How many times faster will helium effuse than nitrogen gas?
208
|
| |
|
|
Which combinations of elements would likely yield a compound of empirical formula X2Y3?
208
|
| |
|
|
What volume of nitrogen at STP would be required to react with 0 100 mol of hydrogen to produce ammonia N2 g 3H2 g 2NH3 g?
207
|
| |
|
|
How to calculate the theoretical yield of SO3?
205
|
| |
|
|
How many grams would 4 5 moles of water H2O weigh?
205
|
| |
|
|
If 3 0 liters of oxygen gas react with excess carbon monoxide at STP how many liters of carbon dioxide can be produced under the same conditions 2?
200
|
| |
|
|
A 100g sample of a liquid with a specific heat capacity of 2 j/gxC absorbs 4000g of heat energy. if that sample started at 30 degrees C, what is the f?
200
|
| |
|
|
How many liters of O2 gas at STP are needed to react with 1 65 moles of sodium?
200
|
| |
|
|
Which sample contains the largest number of atoms?
200
|
| |
|
|
How many water molecules are in a block of ice containing 1 75 mol of water?
200
|
| |
|
|
How many grams of oxygen are needed to react with 22 0 g of Mg?
199
|
| |
|
|
2KI(aq) Pb(NO3)2(aq) = PbI2(s)
2KNO3(aq)?
134
|
| |
|
|
Which of the following electron configurations correspond to an excited state Identify the atoms and write the ground state electron configuration wh?
133
|
| |
|
|
Why is heating CuSo4 5H2O a chemical change?
130
|
| |
|
|
How many moles does 32 g of carbon nh3?
130
|
| |
|
|
How many total oxygen O atoms are present on the reactants side of the equation 2C2H6 7O2 4CO2 6H2O?
125
|
| |
|
|
N2(g) 3H2(g)--> 2NH3(g) How many molecules of N2 are needed to react with 30 molecues of H2?
125
|
| |
|
|
How many moles of water are produced from the complete reaction of 60 0 g oxygen?
125
|
| |
|
|
How many grams of nh3 can be produced from 2 24?
125
|
| |
|
|
Does plant produce carbon dioxide at night?
123
|
| |
|
|
Atmospheric pressure is 1.00
m atm, but air is only composed of 21.0\% (by moles) oxygen. Thus, the partial pressure of oxygen in air is less than 1?
122
|
| |
|
|
What mass of water can be obtained from 4 0 g of H2 and 16 g of O2 ?
121
|
| |
|
|
Calculate the number of moles of Cl atoms in 3.01×1024 formula units of magnesium chloride, MgCl2?
117
|
| |
|
|
Can you give me a sample for additional manpower?
116
|
| |
|
|
How many moles of hydrogen gas can be produced if 4 50 moles of water is reacted according to the following equation?
115
|
| |
|
|
What volume does 22 g of CO2 at STP occupy?
115
|
| |
|
|
The block in the illustration is floating in water, which has a density of 1.0 g/cm3. About 30 percent of the block is below water, so what is a good?
112
|
| |
|
|
How many unpaired electrons does 1s22s22p43s1?
110
|
| |
|
|
How much heat is released if 2 00 moles CF2Cl2 reacts with 70 0 g F2 with a 75 0 percent yield?
110
|
| |
|
|
How many times faster will helium gas effuse through a pinhole than nitrogen gas?
108
|
| |
|
|
Which of the following statements are true There are gas molecules that move faster than the average?
108
|
| |
|
|
How to work out how many moles are required to react?
108
|
| |
|
|
Is heat absorbed or released in the course of this reaction?
108
|
| |
|
|
What volume of oxygen is required for the complete combustion?
108
|
| |
|
|
How many kj of heat will be release when 4 72 g of carbon react excess oxygen gas to produce carbon dioxide?
107
|
| |
|
|
How many grams of calcium nitrate Ca NO3 2 contains 24 grams of oxygen atoms?
107
|
| |
|
|
What is the percentage of oxygen to the nearest tenth in this compound NiSO4 x 7H2O?
107
|
| |
|
|
Why don t bacterial cells burst in a hypotonic solution?
107
|
| |
|
|
If the ratio of carbon atoms to hydrogen atoms to oxygen atoms of dicyclohexyl maleate is 4 to 6 to 1 what is the molecular formula of it when the mas?
107
|
| |
|
|
How many moles is 5 96 g KOH?
107
|
| |
|
|
How many moles of iron will react with 3 00 moles of O2?
107
|
| |
|
|
What happens when you breathe in too much oxygen?
107
|
| |
|
|
How many moles of nitrogen are needed to produce 48 moles of ammonia?
105
|
| |
|
|
How many moles of sodium hydroxide would be needed to completely react with 28 moles of phosphoric acid?
105
|
| |
|
|
Can Compound W Wart Remover be used on cherry angiomas?
105
|
| |
|
|
How many moles of oxygen is produced if 4 Al 3 O2 2 Al2O3?
105
|
| |
|
|
How many grams c are required to react with 2 50 moles of fe2o3?
105
|
| |
|
|
How many moles of sulfur are present in 6 0 moles of al2 so4 3?
105
|
| |
|
|
How many moles of ions are in moles of K2SO4?
105
|
| |
|
|
HOW MANY MOLES OF o2 IS THERE IS H2SO4?
103
|
| |
|
|
How many moles of oxygen gas react to yield 0 100 mole water?
102
|
| |
|
|
What happens when you heat copper II sulphate in a test tube?
101
|
| |
|
|
How many grams of carbon are needed to react with 500g of hematite?
100
|
| |
|
|
How many moles of CO2 are produced when 3.2 moles C2H2 reacts?
100
|
| |
|
|
How many atoms are in 6x10 23 HNO3?
100
|
| |
|
|
What element 1s22s22p43s1 electron configuration?
100
|
| |
|
|
26.8 moles of argon contain how many atoms?
100
|
| |
|
|
Calculate the volume density of silicon atoms?
100
|
| |
|
|
What is the number of molecules of O2 consumed if you combust one mole of CH4 according to the following balanced equation?
100
|
| |
|
|
How many moles of carbon dioxide are produced when 9 03 X 1023 molecules of oxygen react completely in C3H8 5O2 3CO2 4H2O?
100
|
| |
|
|
How many molecules of NO2 are needed to react with 0 250 mole of H20?
100
|
| |
|
|
HOW many moles of nitrogen are produced from 1 mol?
100
|
| |
|
|
How many grams of oxygen are needed to react with 40 0 of?
100
|
| |
|
|
How many grams of water are made from the reaction of 4 0 grams of hydrogen gas Given the reaction 2H2 O2 2H2O?
100
|
| |
|
|
How many grams of metallic copper can be obtained when 52 0 g of Al reacts with 319 g of CuSo4?
100
|
| |
|
|
How many grams of caco3 are needed to neutralize 20 ml of stomach acid?
100
|
| |
|
|
How many total moles of ions are released when CuSo4 is disolved in water?
100
|
| |
|
|
How many grams of nitrogen monoxide reaction of ammonia with oxygen?
100
|
| |
|
|
How many moles of H in 1 9 moles of H3PO4?
100
|
| |
|
|
What volume of air contains 10 8 of oxygen gas at 273 and 1 00?
100
|
| |
|
|
How many moles of MgCl2 are present in a 105 g sample?
100
|
| |
|
|
How to create al2o3 from alcl3?
100
|
| |
|
|
How many total moles of ions are released when the following ionic compound hydrate dissolves completely in water 61 0 g MgSO4 7H2O?
100
|
| |
|
|
How many molecules not moles of are produced from 2 03 10 4 of?
100
|
| |
|
|
How many moles of sodium are used to create 2 moles of sodium chloride?
99
|
| |
|
|
What does silver chloride do in the denaturation of a protein?
99
|
| |
|
|
How many moles of oxygen will be needed to react with 0 38 mol of C3H8 according to the following equation C3H8 5O2 3CO2 4H2O?
99
|
| |
|
|
How many kcal are produced when 32 0 g of CH4 react?
99
|
| |
|
|
How many moles of CO2 are produced when 5 moles of O2 are consumed?
99
|
| |
|
|
What volume of oxygen is needed at STP to completely react 6 2 rm g of aluminum?
98
|
| |
|
|
I feel light headed weak and i cant breathe properly?
97
|
| |
|
|
How many moles of propane gas C3H8 are contained in 11 grams of the gas at standard conditions?
95
|
| |
|
|
When x grams of Mg reacts with HCI 2L of H2 gas is formed how would the amount of H2 gas produced change if the volume of Mg doubled to 2x grams?
95
|
| |
|
|
How many grams of oxygen are needed for complete combustion of the toluene?
95
|
| |
|
|
How many moles of silver are equivalent to 68 3g Ag?
94
|
| |
|
|
How many total moles of gaseous product forms from the combustion of the toluene?
94
|
| |
|
|
Which of the following statements correctly describes the signs of q and w for the following exothermic process at P 1 atm and T 370 K?
94
|
| |
|
|
How many MOLES of dinitrogen tetrafluoride are present in 9 94E 22 molecules of this compound?
93
|
| |
|
|
I How many kJ of heat are released when 50 9 g of CO reacts with 5 09 g of H2 to form CH3OH at constant pressure?
92
|
| |
|
|
Determine the mass of CO2 Determine the mass of {rm{CO}}_2 produced by burning enough of methane to produce 1.00*10^2 kJ of heat?
92
|
| |
|
|
What volume of Na2CrO4 solution is needed to precipitate all the Sr 2 aq as SrCrO4?
92
|
| |
|
|
What happens when copper II Sulfate reacts with sodium hydroxide?
92
|
| |
|
|
How does nh4no3 break down?
92
|
| |
|
|
If you had 1 mole of CO2 in C3H8 5O2 how many H2O moles would you have?
92
|
| |
|
|
How many moles of oxygen are reacted in magnesium?
92
|
| |
|
|
How many grams are there in 3 5 10 26 molecules of H2O?
92
|
| |
|
|
How many moles of Oxygen are in 10 2 mol Fe NO3 3?
92
|
| |
|
|
How many grams of hydrogen are in a sample of octane?
92
|
| |
|
|
How to get the mass neutralized practice questions?
91
|
| |
|
|
What mass of oxygen is consumed when 20 0 L of carbon dioxide are produced in the following equation C3H8 5 O2 3 CO2 4 H2O?
90
|
| |
|
|
What is the minimum number of moles of 02 required to produce one mole of co2?
90
|
| |
|
|
How many moles of oxygen in 2 00L at 24 degrees celcius and 750 torr?
90
|
| |
|
|
If 15 3 mol Cu are formed how many moles of SO2 are produced?
89
|
| |
|
|
How many moles are there in 0236 g of lioh?
89
|
| |
|
|
How many moles are in a 28 carbon sample?
88
|
| |
|
|
HOW DO YOU CALCULATE A NUMBER OF NI ATOMS IN 304 MOL OF NI?
87
|
| |
|
|
How would you prepare 1 00 L of a 0 50 M solution of each of the following a H2SO4 from concentrated 18 M sulfuric acid?
87
|
| |
|
|
How many atoms in a formula unit of calcium carbonate?
87
|
| |
|
|
How many grams is the average gold ring?
87
|
| |
|
|
How much heat in kilojoules is released when 25 6 grams of propane is burned?
85
|
| |
|
|
A flask contains 75.00mL of a 0.101Msugar solution. How much water (mL) must be added to make a 0.0250M sugar solution?
85
|
| |
|
|
How many grams of platinum contain the same number of atoms as 49.5g of gold?
85
|
| |
|
|
How many moles of ammonia are in 1.20 * 10^25 molecules of ammonia?
85
|
| |
|
|
25 liters of hydrogen gives you how much water?
85
|
| |
|
|
Which would describe the state of nitrogen of nitrogen balance of a person who ingested 16g of food nitrogen and lost 19g of nitrogen in urine?
85
|
| |
|
|
A sample of propane,
m C_3H_8, contains 12.1 moles of carbon atoms. How many total moles of atoms does the sample contain?
85
|
| |
|
|
When 15 ml of a solution containing 1 2 m na2s is diluted to 30ml a dilute solution is formed how many moles of na ions are contained in 20 ml of?
85
|
| |
|
|
For the reaction given in Part A, how much heat is absorbed when 2.80 of reacts?
85
|
| |
|
|
How many liters of O2 are needed to react completely with 10.0 L H2S at STP according to the following reaction? 2H2S 3O2 ---> 2SO2 2H2O?
85
|
| |
|
|
F. Thirteen grams of titanium react with 60.0 g of bromine. How many grams of titanium(IV) bromide are produced, assuming 100% yield? How many grams o?
85
|
| |
|
|
What is the theoretical yield of bromobenzene in this reaction when 35 0 of benzene reacts with 75 8 of bromine?
85
|
| |
|
|
How many molecules in 1.5 ,mole of ammonia?
85
|
| |
|
|
How much ATP and NADPH CO2 is needed to make one glucose molecule?
85
|
| |
|
|
When hydrochloric acid reacts with magnesium metal hydrogen gas and aqueous magnesium chloride are produced What volume of 9 0 M HCl is required to?
85
|
| |
|
|
How many moles of NH4 2S are there in 150 g of NH4 2S?
85
|
| |
|
|
What is the balanced equation of sodium peroxide and water?
84
|
| |
|
|
What is the total number of moles of hydrogen gas contained in 9 03 X 10 23 molecules?
84
|
| |
|
|
How many moles of hydrogen were present in the 100 g sample?
84
|
| |
|
|
How many moles of PCl5 remain at equilibrium 375k?
83
|
| |
|
|
What is the formula for the compound formed by strontium ions Sr2 and chloride ions Cl?
83
|
| |
|
|
What volume of O2 gas in L measured 777mmhg?
81
|
| |
|
|
How many of heat are necessary to raise the temperature of a 1 15 block of iron from 23 0 to 84 5?
81
|
| |
|
|
How many molecules are present in 4 00 moles of Cl2?
81
|
| |
|
|
, what is the % yield of the reaction?"?
81
|
| |
|
|
How many moles of CO2 are produced when 2 5 moles of O2react according to the following equation 3CO2 4H2O?
81
|
| |
|
|
How many grams of NH3 reaction?
81
|
| |
|
|
How many liters of CO2 gas at are produced when 33 0g of acetylene undergoes combustion?
80
|
| |
|
|
How many molecules of H2S are present in 100g of H2S?
80
|
| |
|
|
If 5 63 g SO 2 react with excess oxygen and water how much H 2 SO 4 in grams is produced?
79
|
| |
|
|
How many molecules are in a 14 5 12 0 10 0 foot roo?
79
|
| |
|
|
How many grams of NH3 can be produced when 4 50 L of NO2 react?
79
|
| |
|
|
Which one of the following compounds contains an ion with a 3 charge a FeCl3 b MgCl2 c Na2O d CuCl e KCl?
77
|
| |
|
|
If 3 moles of n2 are reacted with 6 mol of h2 what mass of nh3 can be formed?
75
|
| |
|
|
How many moles of KMnO4 are present in 250mL of a 0 0475M solution?
74
|
| |
|
|
Can you sue a salon for chemical burns?
74
|
| |
|
|
How many g of Cl2 is required to react with 100g CH4?
74
|
| |
|
|
What is the volume of 38.9 litre of Oxygen gas at stp?
74
|
| |
|
|
How many molecules are in 30 liters of methane at STP?
74
|
| |
|
|
What is the percent yield of iron?
74
|
| |
|
|
How many moles of oxygen would react completely with 6 moles of hydrogen?
74
|
| |
|
|
How much oxygen gas in grams can be prepared from 38 0 of potassium chlorate?
74
|
| |
|
|
How many moles of atp is produced from 5 moles of glucose?
74
|
| |
|
|
How many grams of O2 are needed to react with 18 5 grams of Mg?
72
|
| |
|
|
In the equation, Mg 2HCl --> MgCl2 H2, what is the amount of moles of H2 produced?
72
|
| |
|
|
How to find moles from mg 2hcl mgcl2 h2?
72
|
| |
|
|
If we reacted 5 grams of hydrogen and 8 grams of oxygen how many grams of water could we make?
69
|
| |
|
|
How many moles of aluminum ions are present in Al2o3?
69
|
| |
|
|
What does pge charge per kwh?
69
|
| |
|
|
How many moles of C is needed to react with 5 moles of H to form C3H8?
68
|
| |
|
|
How many sodium atoms are in one formula unit of sodium phosphate?
68
|
| |
|
|
How many moles of carbon dioxide are in the atmosphere?
68
|
| |
|
|
How many silicon atoms could fit in a cubic centimeter?
67
|
| |
|
|
How many C atoms are in 130 g of CO2?
67
|
| |
|
|
What is the molarity of ZnCl2 aq that forms when 15 0 g of zinc completely reacts with CuCl2 aq according to the following reaction assume final vo?
67
|
| |
|
|
How many moles of Calcium Carbonate are in one roll of Tums that contains 12 tablets?
67
|
| |
|
|
How many liters of water vapor can be produced when 8 23 L of O2 reacts with excess hydrogen gas?
67
|
| |
|
|
How many solute particles are there in 1 mol solution containing glucose C6H11O6 in one kg of H2O?
67
|
| |
|
|
If 8 6 L of H reacted with 4 3 L of Oat STP what is the volume of the gaseous water collected?
67
|
| |
|
|
Why do group1 and group 7 exist as compounds only?
67
|
| |
|
|
Will drinking magnesium citrate oral laxative make me lose weight?
67
|
| |
|
|
If 45 8 grams of potassium chlorate decomposes how many grams of oxygen gas can be produced 2 KClO3 2 KCl 3 O2?
67
|
| |
|
|
What is the name of the compound with the formula Zn CH3COO 2?
67
|
| |
|
|
HOw many co2 molecules are made from a molecule of glucose?
67
|
| |
|
|
Why are elements of group 1 used in the form of compunds?
67
|
| |
|
|
How many moles of hydrogen are produced from the reaction of three moles of zinc with and excess of hydrochloric acid?
67
|
| |
|
|
How many grams of NO2 are theoretically produced if we start with 1.20 moles of S and 9.90 moles of HNO3?
67
|
| |
|
|
What metal produces a lilac purple flame?
67
|
| |
|
|
When glucose C6H12O6 is consumed it reacts with oxygen in the body to produce carbon dioxide water and energy how many grams of carbon dioxide w?
67
|
| |
|
|
How many molecules not moles of NH_3 are produced from 4 01 10 4 g of H_2?
67
|
| |
|
|
How many atoms are present in a molecule of C3H5 OH 3 How many of them are hydrogen atoms?
67
|
| |
|
|
How many grams of co2 and grams of h2o are produces when 52 0g c2h2 burns?
67
|
| |
|
|
If the molar mass of a substance is 20.0 g/mol, what is the mass of 3.01 1025 molecules of the substance?
67
|
| |
|
|
If 20 atoms of aluminum react with 45 molecules of chlorine gas?
67
|
| |
|
|
For the reaction , how many molecules of are required to completely react with 6 molecules of?
67
|
| |
|
|
Find the mass in grams of 8.6 mol of bromine atoms?
67
|
| |
|
|
What mass of gold contains the same number of atoms as 9 0g of aluminum?
67
|
| |
|
|
How many H atoms are in 0 195 mole of ammonium sulfate?
67
|
| |
|
|
How many moles of C02 are required to produce 22 0 mol of glucose?
67
|
| |
|
|
How many liters of CO gas measured under the same conditions is required?
67
|
| |
|
|
Why do group 1 and 7 elements be in the form of compounds?
67
|
| |
|
|
How many moles are there in 24 grams of LiOH?
67
|
| |
|
|
What gas does CuSO4 NaOH produce?
67
|
| |
|
|
How to find the isoosmotic concentration?
67
|
| |
|
|
Can 10k gold be magnetic?
67
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| |
|
|
How many grams of hydrogen are needed to produce 1 80 g of water according to this equation 2 H2 O2 2 H2O?
67
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| |
|
|
What is the theoretical yield of bismuth when g of Bi2O3 reacts with excess carbon as shown below?
67
|
| |
|
|
What volume of air contains 10 3 g of oxygen gas at 273 k and 1 00 atm?
67
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| |
|
|
How many moles of h2o in 2 3 10 to the 24 molecules of water?
67
|
| |
|
|
How many atoms of Oxygen are there in 18 grams of water?
67
|
| |
|
|
How many moles of H2 are required to completely react with 7 moles of N2?
67
|
| |
|
|
How to write a chemical equation with a hydrate?
67
|
| |
|
|
How many hydrogen atoms in 2 00 moles of NH3?
67
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| |
|
|
How to write an appeal for get permission for sit for the final exam?
67
|
| |
|
|
How many grams ion Cl?
67
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| |
|
|
What mass of ammonia will exert the same pressure as 30 mg of hydrogen sulfide H2S in the same container under the same conditions?
67
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| |
|
|
Ratio of gas oxygen litres to burn 70 litres of avgas?
66
|
| |
|
|
What is the percent yield for this reaction under the given conditions?
66
|
| |
|
|
If 12 0 moles of 02 are completely consumed show the numerical setup and final?
66
|
| |
|
|
What are the total number of moles of hydrogen gas contained in 9.03X1023 molecules?
66
|
| |
|
|
If fluorine were in ionic compound with ions of each of the following atoms how many fluorines would be needed?
66
|
| |
|
|
How many moles of carbon dioxide are produced when 9 03 1023 molecules of oxygen react completely in the following equation C3H8 5O2 3CO2 4H2?
66
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| |
|
|
How much heat is absorbed when 5 53 mole of nh4no3 solid is dissolved in water?
66
|
| |
|
|
How many moles of Zn will have reacted with the when the reaction is complete?
66
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| |
|
|
If you take a 14 0 mL portion of the stock solution and dilute it to a total volume of 0 400L what will be the concentration of the final solution?
66
|
| |
|
|
How many moles of co2 gas are produced starting with 100 propane?
66
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| |
|
|
When 2 3 moles of X reacts with 1 6 moles of Y 63 grams of Z are produed What is the molar mass of Z?
66
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| |
|
|
How manyNO2 molecules would form as products if the reaction had a percent yield of 75?
66
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| |
|
|
How many moles of H2 are need to react with 0.85 moles of N2?
65
|
| |
|
|
How many grams of phosphorus are in 457g of Ca3 PO4 2?
65
|
| |
|
|
What is the reaction type when you react FeCl3 solution with NaOH solution?
65
|
| |
|
|
If 5 gmoles of propane were to completely combusted with pure?
65
|
| |
|
|
How many molecules of carbon dioxide CO2 are present at STP in a 94 6 L container?
65
|
| |
|
|
How many moles of are present in 38 0 of a 4 70 solution of nitric acid?
65
|
| |
|
|
What mass of iron contains the same number of atoms as 13 85 g of nitrogen?
65
|
| |
|
|
For the reaction,2h2o2 2h2o o2,the order is?
65
|
| |
|
|
8. A balloon contains 1.5 L of air at 101.5 kPa. You squeeze it to a volume of 0.85 L. What is the pressure of air inside the balloon?
64
|
| |
|
|
What is the volume of 2 Moles of CO2 at STP How many moles of N2 are there at a temperature of 20 degrees Celsius 1 atm pressure if the gas occupie?
64
|
| |
|
|
Which of these statements is true regarding a job search?
63
|
| |
|
|
How many grams of CO2 result when 285g of Fe2O3 react?
63
|
| |
|
|
What volume in L of H2O g measured at STP is produced by the combustion of 3 85 g of natural gas CH4 according to the following equation?
63
|
| |
|
|
How many moles of ibuprofen contain 1 76 1023 atoms of carbon?
63
|
| |
|
|
How many moles are in 6.02 x 10^24 molecules of NH3?
63
|
| |
|
|
How many molecules are in 5 6g of H2S?
61
|
| |
|
|
If 2 00 g of zn 1 175g CuSO4?
61
|
| |
|
|
How much does a full tank of nitrous oxide weight?
61
|
| |
|
|
How many grams of sodium lactate CH3CH OH COONa or NaC3H5O3 should be added to 1 00 L of 0 182 M lactic acid CH3CH OH COOH or HC3H5O3 to form a bu?
61
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| |
|
|
If 18 0 moles of dinitrogen tetroxide is consumed in this reaction how many moles of nitrogen gas will be released?
61
|
| |
|
|
Lithium metal descomposes in water and releases hydrogen gas. If 275 ml of hydrogen gas is produced at STP what is the mass of lithium reacted? Li H?
60
|
| |
|
|
How would you tell if zinc reacts with 0 5m of cuso4 solution?
60
|
| |
|
|
Combustion analysis of 1.200 g of an unknown compound containing carbon, hydrogen, and oxygen produced 2.086 g of CO2 and 1.134 g of H2O. What is the?
60
|
| |
|
|
How many milliliters of O2 will form at STP from 45 6 g KClO3?
59
|
| |
|
|
How many moles are in 4 00g of CO2?
59
|
| |
|
|
5 grams of calcium combine with 2 grams of oxygen to give a compound. Find the molecular formula of that compound?
59
|
| |
|
|
When the equation H2 Fe3O4 Fe H2O is completely balanced using the smallest whole numbers the coefficient of H2 would be?
59
|
| |
|
|
How many moles of water form when 5.00L of propane reacts?
59
|
| |
|
|
How many moles of water form when 5 00L of propane gas completely reacts?
59
|
| |
|
|
How many moles of excess reactane remain after the reaction has completed?
59
|
| |
|
|
How many moles are equivalent to 3 58x10 23formula units of ZnC12?
59
|
| |
|
|
What is the mass in grams of 3 40x10 22atoms He?
59
|
| |
|
|
What is the bascity of aspirin and reaction with ammonia gas?
59
|
| |
|
|
What mass of H2O in kg is present in a sample containing 3 06 x 1026 molecules of H2O?
59
|
| |
|
|
How many moles are in 80 g of carbon and 20g in hydrogen?
59
|
| |
|
|
How many moles of nitrous oxide gas are produced from 1 65 moles of nitrogen gas?
59
|
| |
|
|
How many oxygen atoms are in 6mol of so3?
59
|
| |
|
|
How many atoms of each element are found in potassium iodide K1?
59
|
| |
|
|
How many frams of C2H6 are required to porduce 99 grams of CO2?
59
|
| |
|
|
How many grams of fluorine are needed to react with 6 20 g of phosphorus?
59
|
| |
|
|
What does zip forms cost?
59
|
| |
|
|
I have a diamod gold bralet that has 925 oz wm on it what does it mean?
59
|
| |
|
|
How many atoms of hydrogen are present in one molecule of Al(H2PO4)3?
59
|
| |
|
|
What is an sr 1 form?
59
|
| |
|
|
How many formula units make up 14 0 of magnesium chloride?
59
|
| |
|
|
How many moles are in 48 grams of oxygen gas?
59
|
| |
|
|
How many MOLES of phosphorus trichloride are present in 4 67 grams of this compound?
59
|
| |
|
|
How many molecules are in 2.50 moles of CO2?
59
|
| |
|
|
Calculate the dose in milligrams for a 150 pound person?
59
|
| |
|
|
Using the average moles in vitamin C titrated, calculate the amount of vitamin C in mg, that was in the tablet you analyzed. (Hint: remember how the t?
58
|
| |
|
|
How many atoms of oxygen are in 0 100 moles of silicon dioxide?
58
|
| |
|
|
How many atoms are in a 8 10 8 10 8 10 cube of aluminum?
58
|
| |
|
|
How to get the mass of HCl neutralized CaCO3?
58
|
| |
|
|
What happens if you heat CuSO4 5H2O?
58
|
| |
|
|
Whats the differants between 1oz and 1 troy oz?
57
|
| |
|
|
An iron ore contains 42% Fe2O3 by mass. What is the maximum mass of iron that can be recovered from 17.0 kg of this ore?
57
|
| |
|
|
After Co2 and CO are released from an isooctane combustion process, is it possible to include them (as a larger molecule) in a subsequent iso-octane?
57
|
| |
|
|
How many atoms of carbon are present in 18g of glucose?
57
|
| |
|
|
Will hot water pad shrink acne?
56
|
| |
|
|
How many moles of Co2 are produced when 1 8x10 4 moles of octane burn?
56
|
| |
|
|
Why water of crystallization of magnesium sulphate is 7 moles?
56
|
| |
|
|
How many grams of oxygen are in 3 48x10 23 formula units of NH4 2SO4?
56
|
| |
|
|
How much charge to put a gps?
56
|
| |
|
|
How much do draftsmen charge?
55
|
| |
|
|
How many grams of rm CH _ 3 rm OH can be made from 18 0 g of rm CO if it all reacts?
55
|
| |
|
|
How many particles does MgSO4 dissociate to?
55
|
| |
|
|
How many times faster will helium effuse through a pinhole than will nitrogen gas under the same conditions?
55
|
| |
|
|
How many molecules not moles of are produced from 6 31 10 4 of?
55
|
| |
|
|
What happens to sweet potatoes that are placed in sodium chloride?
55
|
| |
|
|
How many moles of h2o can be made from 10 moles of c2h6?
55
|
| |
|
|
If 13 4 grams of iron III oxide reacts with 12 3 grams of carbon monoxide to produce 8 23 g of pure iron what are the theoretical yield and percent?
55
|
| |
|
|
How many moles of sodium bicarbonate NaHCO3 are there in 508 g?
54
|
| |
|
|
Calculate the number of molecules in 6.00?
54
|
| |
|
|
How many atoms does 2K4Fe CN 6 have?
54
|
| |
|
|
What volume of air contains 12 6 g of oxygen gas at 273 K and 1 00 atm?
54
|
| |
|
|
HOW MANY GRAMS OF CALCIUM FLURIDE ARE THERE IN 2 50 MOLES?
54
|
| |
|
|
What is the molecular formula of the hydrocarbon ight moles of CO2 and eight mols of H2O?
54
|
| |
|
|
How many grams of NH3 gas can be made if 42 0 g of N2 gas and 12 0 g of H2 gas react with each other?
54
|
| |
|
|
Which of the following statements is true of the bonds in a water molecule?
54
|
| |
|
|
How much heat is produced in burning 1 mol of propane C3H8 g under standard conditions if reactants and products are brought to 298 K and H2O l is?
53
|
| |
|
|
When bacteria that are living in a freshwater stream moved to seawater then what would happen?
53
|
| |
|
|
If 2 0 moles ofa and 3 0 moles of b react according to the hypothetical reaction below how many moles of the excess reactant will be left over at the?
53
|
| |
|
|
What is the main component of atoms that determines the type of bond that forms between atoms or compounds? Explain?
53
|
| |
|
|
What mass of salicyclic acid is needed to produce 1 500 mg tablet of aspirin with a 60 yield?
53
|
| |
|
|
What is the density of methane gas CH4 at STP ____ g L?
53
|
| |
|
|
8. For reaction 3, above, how many grams of CaO(s) and CO2 (g) will be produced from 0.375 moles of CaCO3(s)?
52
|
| |
|
|
What is 16k gold?
52
|
| |
|
|
If the density of a gas is 1 2gIL at 745 torr and 20C what is its molecular mass?
52
|
| |
|
|
How many moles of C3H8 conain 9.25*10^24 molecules of C3H8?
52
|
| |
|
|
How many ml of conc 16 m hno3 is required to reaction with 9 09g of feso4 7h2o?
52
|
| |
|
|
How many ml of conc 16 m HNO3 is reqired to reaction with 9 09g of feso4 7h2o?
52
|
| |
|
|
What happends when zinc and copper are mixed?
52
|
| |
|
|
What number of atoms of phosphorus are present in 1 04 g of each of the compounds listed?
52
|
| |
|
|
What gas is formed when copper II sulfate reacts with solid zinc?
52
|
| |
|
|
How many grams of water can be cooled from 41 to 19 by the evaporation of 61 of water?
52
|
| |
|
|
If 2 617 g of glucose are metabolized with excess oxygen how many grams of carbon dioxide are produced?
52
|
| |
|
|
How much energy is released by the combustion of 1 50mol of c8h18?
52
|
| |
|
|
How many molecules in 1.80 mol of sulfur dioxide?
52
|
| |
|
|
If 25 0 mL of AgNO3 is needed to precipitate all the Cl ions in a 785 mg sample of KCl forming AgCl what is the molarity of the AgNO3 solution?
52
|
| |
|
|
What is the mass in grams of 2 90 10 3 of ammonium phosphate?
52
|
| |
|
|
How many atoms of hydrogen are in 0 75 mol of C3H5 2S?
52
|
| |
|
|
How much heat is evolved when 320 g of SO2 is burned according to the chemical equation shown below?
52
|
| |
|
|
How many formula units make up 40 0 g of magnesium chloride MgCl2?
52
|
| |
|
|
How many atoms make up one molecule of vitamin b12?
52
|
| |
|
|
How many molecules of carbon in 2 50 moles of carbon dioxide?
52
|
| |
|
|
How many aluminum ions are present in the following aqueous solution 345 mL of a solution containing 4 22 g L aluminum sulfate?
52
|
| |
|
|
How many moles of hydrogen atoms are present in 9g of water?
52
|
| |
|
|
Can you help with stoichiometry?
51
|
| |
|
|
How many moles of nitrogen N2 are in 79 0 of nitrous oxide?
51
|
| |
|
|
How many molecules not moles of rm NH_3 are produced from 5 04 10 4 g of rm H_2?
51
|
| |
|
|
What are the products of the double replacement reaction between potassium cloride and silver acetate?
51
|
| |
|
|
How much weight equals a BMI point?
51
|
| |
|
|
How many moles of tin atoms are in a pure tin cup with a mass of 39 1 rm g?
50
|
| |
|
|
If 22 5 L of oxygen reacted with excess hydrogen how many liters of water vapor gaseous water could be produced?
50
|
| |
|
|
How long does silicone take to dryon oil pan?
50
|
| |
|
|
How many grams of neon occupy a volume of 14 3 L at STP?
50
|
| |
|
|
Which one of the following is a double displacement reaction A 2H2 g O2 g 2H2O g B 2H2O l 2H2 g O2 g C NaOH aq HCl?
50
|
| |
|
|
In the following reaction, how many liters of oxygen will react with 124.5 liters of propane (C3H8), at STP?C3H8 5O2d 3CO2 4H2O?
50
|
| |
|
|
If 54.8 mL of BaCl2 solution is needed to precipitate all the sulfate ion in a 722-mg sample of Na2SO4, what is the molarity of the solution?
50
|
| |
|
|
Nitric acid dissociates into its component ions in water. How many ions are present if 2.0 moles of HNO3 are completely dissolved in water?
50
|
| |
|
|
What are the products of the double-replacement reaction between aqueous hydrogen bromide and aqueous sodium hydroxide?
50
|
| |
|
|
Medical question regarding succinyclcholine choloride?
50
|
| |
|
|
A hypothetical polysaccharide is formed via the condensation of 65 glucose, 65 fructose and 44 maltose molecules. H20 molecules needed for hydrolysis?
49
|
| |
|
|
12.0 moles of gas are in a 3.00 L tank at 24.4C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van?
49
|
| |
|
|
Does aqueous copper sulphate acts as a catalyst between de rxn of zinc and hcl it is for a p&d for chem lab?
49
|
| |
|
|
Which of the compounds listed is the most likely to be INSOLUBLE in water? Ba(NO3)2 LiCl CuS K3PO4?
48
|
| |
|
|
My sister has cancer and she had to get a blood transfusion for low Hemoglobin, how long will it take for her to get her energy back?
48
|
| |
|
|
If 18 0 grams of CO2 is produced in the reaction C2H2 with O2 to form CO2 and H20 how many grams of H2O are produced What is the coefficient for the?
48
|
| |
|
|
.166 moles of H2O contains how many molecules?
48
|
| |
|
|
Why must Epsom salt be heated to constant weight?
48
|
| |
|
|
What is the mass in grams of 6.62 *10^21 molecules of asprin?
48
|
| |
|
|
What is true about the ratio of carbon and hydrogen atoms to oxygen atoms in lipids?
48
|
| |
|
|
How many atoms are present in a 1.0 mole sample of potassium perchlorate (KClO3)?
48
|
| |
|
|
How much for 68 grams of gold?
48
|
| |
|
|
How many atoms of oxygen are in AI2 SO3 3?
48
|
| |
|
|
How many formula units make up 24 8 g of magnesium chloride?
48
|
| |
|
|
How to calculate the number of moles of precipitate produced in teh reaction?
48
|
| |
|
|
Is sulfate a solid aqueous or gas?
48
|
| |
|
|
How many kilojoules of heat are released when 38 5 grams of CH4 reacts completely with O2 to form CH3OH at constant pressure?
47
|
| |
|
|
How many grams of water is produced from 33 4 grams of hydrogen given the following unbalanced equation?
47
|
| |
|
|
Calculate the amount of heat transferred when 43.0 of is decomposed by this reaction at constant pressure?
46
|
| |
|
|
When magnesium carbonate MgCO2 reacts with nitric acid HNO3 it forms magnesium nitrate Mg NO3 2 and carbonic acid H2CO3 Carbonic acid then bre?
46
|
| |
|
|
What compounds carbon 12 make?
46
|
| |
|
|
How many moles of methane are produced when 36 6 of carbon dioxide gas react with excess hydrogen gas?
46
|
| |
|
|
Why when heated does the mass change for CuCO3?
46
|
| |
|
|
What is the osmotic pressure of a solution made from dissolving 50 0 of glucose in 250 of water at 44 0?
46
|
| |
|
|
WHAT HAPPENS WHEN PROTEIN IS TESTED WITH COPPER SULPHATE?
46
|
| |
|
|
How many moles of potassium nitrate contain 8 68 1020 KNO3 formula units?
45
|
| |
|
|
Calculate the mass of water produced when 3.05g of butane reacts with excess oxygen?
45
|
| |
|
|
How many total moles of ions are released when the following samples are dissolved in water?
45
|
| |
|
|
How many ATOMS of carbon are present in 2 61 moles of carbon tetrafluoride?
45
|
| |
|
|
I got 35% for my chemistry prelim can you tell me what grade I would get?
45
|
| |
|
|
What is the osmotic pressure of a solution made from dissolving 25 0 of glucose in 725 of water at 36 0?
45
|
| |
|
|
Which statement is false about allosteric regulation?
45
|
| |
|
|
What would you multiply moles of carbon dioxide by to convert to the units moles of water?
45
|
| |
|
|
How many grams of oxygen are required for the complete combustion of 6 00 g of ethane C2H6?
45
|
| |
|
|
How to calculate number of formula units given the total atoms?
44
|
| |
|
|
If 0.450 moles of iron III oxide (Fe2O3) are allowed to react with an excess of aluminum (Al) and 43.6 grams of iron (Fe) is produced, what is the per?
44
|
| |
|
|
Which of these statements is true regarding a job search?
44
|
| |
|
|
How many moles of NH3 are produced from 6 78 x 10 4 g of H2?
44
|
| |
|
|
Propane (C3H8) is burned in oxygen to produce carbon dioxide and water. The heat ofcombustion of propane is -2012 kJ/mole. Howmuch heat is given o%uFB?
43
|
| |
|
|
If methanol is present in excess how many moles of CO are required to produce 16 6 moles of acetic acid?
43
|
| |
|
|
How many oxygen atomsare present in a formula unit of lead ii acetate?
43
|
| |
|
|
What is the mass of 0 1 mole of ozone gas?
43
|
| |
|
|
How many grams of Mn are in 4 0 mol of the element?
43
|
| |
|
|
If the concentration of Na in an aqueous solution of sodium sulfate is 3 2 10 1 mol L how many moles of sodium sulfate must have been dissolved p?
43
|
| |
|
|
If 13 6 L of measured at STP is allowed to react with 15 6 g of water find the limiting reagent?
43
|
| |
|
|
How many grams of carbon dioxide can be produced by burning moles of propane?
43
|
| |
|
|
How many moles of sodium hydroxide would be required to react with 1 50l of 0 500 m sulfuric acid to reach the end point?
42
|
| |
|
|
What should I be looking for accepting for 190 grams of 9karat gold?
42
|
| |
|
|
How many moles of lithium is 3.25 x 1023 lithium atoms?
42
|
| |
|
|
How many atoms of deuterium are there in 2 kg of water?
42
|
| |
|
|
How many moles are in 15 5g?
42
|
| |
|
|
Which of the following statements is not true about Georgia?
42
|
| |
|
|
If sufficient acid is used to react completely with 21.0 grams of Mg what volume of hydrogen at stp would be produced?
42
|
| |
|
|
If you have 4g of hydrogen and 32g of Oxygen how much water will you produce?
42
|
| |
|
|
How many atoms does k3po4 have?
42
|
| |
|
|
How many moles of AlCl3 produced from 0 45 mole of Cl3?
42
|
| |
|
|
What is the minimum number of grams of CO required to produce 88 grams of CO2?
42
|
| |
|
|
How many moles are in a 15 9g sample of Ca NO3 2?
42
|
| |
|
|
What is the concentration of the sodium ion in M in a solution of 0 516 M sodium carbonate?
41
|
| |
|
|
Consider a mole of oxygen gas and a mole of ozone gas, Which has a greater mass?
41
|
| |
|
|
What has a greater mass in mole oxygen gas or ozone gas?
41
|
| |
|
|
If 3 99 moles C5H12 reacts with excess O2 how many moles of CO2 will be produced in following combustion reaction?
41
|
| |
|
|
How many grams of baking soda NaHCO3 are needed to react with 179 mL of stomach acid having an HCl concentration of 0 07950 M?
41
|
| |
|
|
When KMnO4 MgS K2S mMg[MnO4}]2 is balanced what will be the correct set of coefficients?
41
|
| |
|
|
How many moles of glucose C6H12O6 are in 6 0 liters of a 3 5 M C6H12O6 solution?
41
|
| |
|
|
How many moles of rm HNO _3 are present in 31 0 mL of a 2 60 M solution of nitric acid?
41
|
| |
|
|
If sufficient acid is used to react completely with 21 0 grams of Mg what volume of hydrogen at stp would be produced?
41
|
| |
|
|
What is the concentration M of sodium ions in 63g of NaNO3?
41
|
| |
|
|
If the anhydrous compound AC in the preceding problem has a molar mass of 160 g mol what are the water of crystallization X and formula for the h?
40
|
| |
|
|
How many grams of Na2O are produced when 94 4g of Na reacts?
40
|
| |
|
|
How many number of moles of aluminium sulfur and oxygen atoms in 9 00 moles of aluminium sulfate?
40
|
| |
|
|
When 1 1 moles of iron III oxide react with excess aluminum how many moles iron are produced?
40
|
| |
|
|
How many kilojoules of heat are released when 38 5 of reacts completely with to form at constant pressure?
40
|
| |
|
|
How many oxygen atoms are in 3 21 x 1022 molecules of CH3OH?
40
|
| |
|
|
How many moles of CO2 are in 6 22 x 1024 molecules of CO2?
40
|
| |
|
|
How many MOLECULES are present in a sample of this compound that contains 1 42 moles of 2 methyl 2 propanol?
40
|
| |
|
|
How many moles are present in a 250 gram sample of hydrogen nitrate HNO3?
40
|
| |
|
|
If 5 g of C2H6 react with 85 g of O2 how many grams of water will be produced?
40
|
| |
|
|
When 4 0 mol H2O react with 4 0 mol Al in the reaction below 2 7 mol of Al are used up in the reaction How many moles of Al are left over unreacted?
40
|
| |
|
|
How many liters of oxygen gas at STP are needed to react completely with 8 0 grams of magnesium?
40
|
| |
|
|
Which of the following samples contains the largest number of atoms?
40
|
| |
|
|
How to find total molar concentration of ions M HClO4?
40
|
| |
|
|
How many moles of oxygen, o2, are needed for the complete combustion of 2 moles of hydrogen?
40
|
| |
|
|
How much heat is absorbed when 3 30 mol of A reacts?
40
|
| |
|
|
How many moles of HNO3 are present in 30 0 mL of a 2 50 M solution of nitric acid?
40
|
| |
|
|
Does heating a hydrate cause a chemical change?
40
|
| |
|
|
If 4 0 moles of Al react with excess O2 how many moles of Al2O3 can be formed?
40
|
| |
|
|
How many moles of NH3 can be made from 2 9 moles H2?
40
|
| |
|
|
How many ions are there in 102g of aluminium oxide?
39
|
| |
|
|
How moles of oxygen are produced for one mole of sugar synthesized in photosynthesis?
39
|
| |
|
|
What mass of carbon dioxide is produced from the complete combustion of 7.4010%u22123 of methane?
39
|
| |
|
|
What happens when cuso485h2o dissolves in water?
39
|
| |
|
|
How many moles are in 200 mL of butane?
39
|
| |
|
|
How much is Gold worth per Liter?
39
|
| |
|
|
How much gold is worth per liter?
39
|
| |
|
|
If a sample of pure cadmium has a mass of 18 2 grams how many moles of cadmium are in the sample?
39
|
| |
|
|
If 11 2 grams of octane are burned in one cylinder?
39
|
| |
|
|
What is the mass of calcium carbonate needed to produce 61 0 of carbon dioxide at STP?
39
|
| |
|
|
What mass of carbon dioxide is produced from the complete combustion of 5 80 10 3 of methane?
39
|
| |
|
|
How many milliliters of HNO3 is required to react with 9 9 g of FeSO4 7H2O?
39
|
| |
|
|
How many moles of qxygen are needed for the complete combustion of 3 0 moles of CH4?
38
|
| |
|
|
TRY TO FIGURE OUT HOW TO FIND OUT THE NUMBER ONF CARBON ATOMS IN A COMPOUNDS?
38
|
| |
|
|
How many moles of sodium oxide will be produced when 10 moles of sodium react with oxygen This is the formula for the reaction 4Na O2 2Na2O?
38
|
| |
|
|
How many grams of magnesium oxide would be produced by reacting completely 4 0 g of magnesium with oxygen?
38
|
| |
|
|
What is dac mean on gold?
38
|
| |
|
|
Does chromium make you urinate?
38
|
| |
|
|
What is the minimum volume of 4.0 M HCL required to completely dissolve 22.0 g of magnesium metal?
38
|
| |
|
|
How many moles of PBr3 will be produced when 0.78 mol Br2 reacts according to the following equation: 2 P 3 Br2 --> 2 PBr3?
38
|
| |
|
|
How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at stp?
38
|
| |
|
|
How many moles of carbon are in 50 g of CS2?
38
|
| |
|
|
What is the difference between CuSO4 s and CuSO4 5H2O s?
38
|
| |
|
|
How many liters of phosphoric are formed when 0 42 l of hydrogen reacts with phosphorus?
37
|
| |
|
|
What is fi 14k metal?
37
|
| |
|
|
Calculate the mass of water produced when 7.94 of butane reacts with excess oxygen?
37
|
| |
|
|
Is there enough oxygen for the complete combustion of butane calculations?
37
|
| |
|
|
How many moles of Oxygen are there in 5 2 g of CuO2?
37
|
| |
|
|
What is the high consentration in egg?
37
|
| |
|
|
What type of reaction is shown in the following chemical equation 2H2O 2H2 O2?
37
|
| |
|
|
Formula to calculate WW Points for Zumba?
37
|
| |
|
|
How to find number of sodium ions in a 0 829 mol sample of sodium sulphate?
37
|
| |
|
|
If 32 grams of oxygen is combined with 4 grams of hydrogen how much water would be formed?
37
|
| |
|
|
What mass of glucose can be produced from a photosynthesis reaction 6CO2 g 6H2O C6H12O6 aq 6O2 g that occurs using 13 6 mol CO2?
37
|
| |
|
|
What mass of Na2CrO4 is required to precipitate all of the silver ions from 71 7 mL of a 0 140 M solution of AgNO3?
37
|
| |
|
|
How many carbon atoms are in 4 80 mol carbon tetrachloride CCl4?
37
|
| |
|
|
How many liters of rm CO_2 are formed at STP by the complete combustion of the propane in a container with a volume of?
37
|
| |
|
|
How many silver (Ag) atoms are in 3.0 moles of silver?
37
|
| |
|
|
How many moles of O atoms are there in 56 9270 grams of CuSO4 5H2O?
37
|
| |
|
|
How many atoms of silver are in the bracelet?
37
|
| |
|
|
What is the balance equation for K2Cr2O7 FeSO4?
37
|
| |
|
|
Which of the following statements about the ATP molecule is true?
37
|
| |
|
|
How many moles of stomach acid would be neautralized by one tablet of maalox that contains 600 mg of calcium carbonate?
36
|
| |
|
|
How many molecules does 11 0 grams of CO2 represent?
36
|
| |
|
|
How many grams of Cr can be produced by the reaction of 44 1 g of Cr2O3 with 35 0 g of Al according to the following chemical equation 2Al?
36
|
| |
|
|
How many atoms are present in one unit of sodium solfate?
36
|
| |
|
|
If the density of a 40 0 mass solution of ethylene glycol in water is 1 0514 rm g mL at 20 circ rm C what is the molarity?
36
|
| |
|
|
Which of the following is a chemical equation that accurately represents what happens when sulfur and oxygen react to form sulfur trioxide 1 point?
36
|
| |
|
|
If 125 grams of Al reacts with HCL how many grams of Hydrogen are formed?
35
|
| |
|
|
A sample of propane, , contains 11.3 of carbon atoms. How many total moles of atoms does the sample contain?
35
|
| |
|
|
Burning gas releases 11.5 kcal of energy per gram. how many joules of energy are released when 1.0 gal of gas is burned? density = 0.74 g/ml?
35
|
| |
|
|
How many atoms of carbon are contained in 47.6 g of Al2(CO3)?
35
|
| |
|
|
WHICH OF THE FOLLOWING STATEMENTS IS TRUE OF THE BONDS IN WATER MOLECULES?
35
|
| |
|
|
Can zinc oxide cause constipation?
35
|
| |
|
|
What volume in liters of oxygen at STP is released by heating 13 17 of?
35
|
| |
|
|
How many grams of water are consumed if 4 0g of hydrogen gas and 32 0 g of oxygen gas are produced?
35
|
| |
|
|
How many molecules are in 14g of phosphorus pentoxide?
35
|
| |
|
|
Why do we use group 1 and 7 elements as compounds?
35
|
| |
|
|
How many molecules not moles of NH3 are produced from 7 63 10 4 of H2?
34
|
| |
|
|
How many moles of chloride ions are in 0 2520 of aluminum chloride?
34
|
| |
|
|
How much 001 M HCl required to react with 500mg CaCO3?
34
|
| |
|
|
What is the osmotic pressure of a solution made from dissolving 45 0 of glucose in 725 of water at 7 00?
34
|
| |
|
|
2CH4 2NH3 3O2 = 2HCN 6H2O?
34
|
| |
|
|
How many grams of hydrogen are in 76 g of CH4O?
34
|
| |
|
|
How many air molecules are in a rm 10 0 times 12 0 times 10 0 ft room Assume atmospheric pressure of 1 00 a room temperature of 20 0 and ideal?
34
|
| |
|
|
How many grams of water can be cooled from 41 to 21 by the evaporation of 58 of water The heat of vapor?
34
|
| |
|
|
How many oxygen atoms are in 225 g of Fe NO2 3?
34
|
| |
|
|
How many grams of methane CH4 g must be combusted to heat 1 07 kg of water from 25 0 C to 80 0 C?
34
|
| |
|
|
What is the molarity of ZnCl2 that forms when 15 g of zinc completely reacts with CuCl2?
34
|
| |
|
|
Is to much oxygen bad for you?
34
|
| |
|
|
If you dilute 26 0 ml of the stock solution to a final volume of 0 440 l what will be the concentration of the diluted solution?
34
|
| |
|
|
Is the dehydration of CuSO4 5H2O a physical or chemical change?
34
|
| |
|
|
2na cl2-->2nacl how many moles of sodium would be required to react with all the chlorine present?
33
|
| |
|
|
How much water can be produced from the complete reaction of 4 73 L of oxygen gas atSTP with hydrogen gas?
33
|
| |
|
|
How many grams of water can be cooled from 35 to 20 by the evaperation?
33
|
| |
|
|
How many molecules does 36 0 grams of water represent?
33
|
| |
|
|
How much heat is released when 12 4 g Fe and 1 36 g O2 are reacted?
33
|
| |
|
|
If 15grams of CuSo4 5H2O are heated to 150 degrees C what mass of anahydrous CuSo4 will remain?
33
|
| |
|
|
What is the maximum amount of silver in grams that can be plated out of 4 5 rm L of an rm AgNO _3 solution containing 3 5 rm Ag by mass?
33
|
| |
|
|
What is the volume occupied by 7 0 g of hydrogen under a pressure of 1 9 atm and a temperature of 300 K?
33
|
| |
|
|
Does Vitamin B complex turn your stool dark?
33
|
| |
|
|
When 34 8 L ammonia and 41 5 L oxygen gas at STP burn nitrogen monoxide and water are produced After the products return to STP how many grams of?
33
|
| |
|
|
If 18 x 1023 molecules of H2 react with nitrogen how many moles of NH3 are produced?
33
|
| |
|
|
What is the percent by mass concentration of NaCl in a solution that is prepared by adding 14 0 g of NaCl to 75 0 g of water?
33
|
| |
|
|
How to get 1M of ZnSO4?
33
|
| |
|
|
What is the molar mass of fe CH3COO 3?
33
|
| |
|
|
How many grams of nitric acid can be made from 84 6 grams of oxygen?
33
|
| |
|
|
What is the volume of oxygen at stp is released by heating 14 04g of HgO?
33
|
| |
|
|
What is empirical formula for a 170 0 g sample that contains 56 15 g C 9 43g H 74 81g O 13 11g O 21 49g Na?
33
|
| |
|
|
How to find how many moles are in an elemnt?
33
|
| |
|
|
What volume of a 0 5 M HCl solution is needed to neutralize 10 mL of a 0 300 M Ba OH 2 solution?
33
|
| |
|
|
If 156 of wet is collected over water at 24 and a barometric pressure of 737 how many grams of have been consumed The vapor pressure of water is?
33
|
| |
|
|
Which of the following statements about skiing is not true?
33
|
| |
|
|
How many grams of stomach acid would be neutralized by a tums antacid tablet that contains 500 g of CaCO3?
33
|
| |
|
|
How much heat in kilojoules is evolved or absorbed in the reaction of 2 60 of with 368 4?
33
|
| |
|
|
How many ml of 0 325 N H2SO4 are required to neutralize?
33
|
| |
|
|
Is grinding copper sulfate pentahydrate an apparent loss of mass?
33
|
| |
|
|
How many atoms are present in 0 65 moles of P4O10?
33
|
| |
|
|
What happens if you accidentally inhale butane fuel?
33
|
| |
|
|
What is the molar ratio between fe h2o?
33
|
| |
|
|
If a sample of barium contains 2 3 x 1023 atoms of barium how many grams of barium are in the sample?
33
|
| |
|
|
How many ethane molecules are in 22 4 liters of C2H6 gas at STP?
33
|
| |
|
|
How many total atoms are in one mole of ammonia NH3?
33
|
| |
|
|
How many kilograms of iron were needed to produce this volume of H2 if the temperature was 25 deg C?
33
|
| |
|
|
Which of the following statements are true There are gas molecules that move faster than the average The average speed of gas molecules increases w?
33
|
| |
|
|
Why are isotonic solutions used as parenteral solutions?
33
|
| |
|
|
How many grams of sulfur dioxide can be produced when 39 0 oxygen react?
33
|
| |
|
|
How many electrons are transferred in the following reaction 2Al s 6H aq 2Al3 aq 3H2 g?
33
|
| |
|
|
If 6 mol of h2 are consumed how many moles of nh3 are produced?
33
|
| |
|
|
If 6 0 moles of CO2 are produced how many moles of O2 were reacted?
33
|
| |
|
|
What is the delta H reaction for Mg s 1 2O2 MgO?
33
|
| |
|
|
Would a red blood cell crenation hemolysis or none that the following solutions would have 2 NaCl H2O 5 glucose?
33
|
| |
|
|
What reaction is Pb NO3 2 2Kl Pbl2 2KNO3?
33
|
| |
|
|
What is the chemical equation for heating CuSO4 5H2O?
33
|
| |
|
|
How much heat in kJ is released in the reaction of 10 00 g of Al with 15 00 g of Cl2?
33
|
| |
|
|
What happens when an alkali metal reacts with oxygen?
33
|
| |
|
|
Will a red blood cell undergo crenation hemolysis or no change in each of the following solutions 1 m v glucose 2 m v NaCl 5 m v NaCl 0 1?
33
|
| |
|
|
How many moles of 11 0 grams of Na2CO3?
33
|
| |
|
|
What is the chemical equation for CuSO4 x 5H2O reaction?
33
|
| |
|
|
How many moles of HNO3 are present in 35 mL?
33
|
| |
|
|
How many total moles of ions are released when each of the following samples dissolves completely in water?
33
|
| |
|
|
How many moles of carbon in combustion of?
33
|
| |
|
|
What mass of iron contains the same number of atoms as 14 01g of Nitrogen?
32
|
| |
|
|
What are two reasons why the method used in this experiment to find the percentage of water in the hydrated crystals is not suitable for all hydrates?
32
|
| |
|
|
How many moles of ions are released when 0 27 mol of cobalt 2 chloride CoCl2 is dissoved in water?
32
|
| |
|
|
How much carbon dioxide in kilograms is produced upon the complete combustion of 24 5 L of propane approximate contents of one 5 gal tank Assume th?
32
|
| |
|
|
How many grams of CH3OH can be made from 16.1 g of CO if it all reacts?
32
|
| |
|
|
How many molecules of allicin are in 6 50 mg of this substance?
32
|
| |
|
|
How many grams make up 2 42 moles of strontium sulfate?
32
|
| |
|
|
What happens when sodium tetraborate gets heated?
32
|
| |
|
|
What happens to metabolites?
32
|
| |
|
|
How many moles of CO2 are produced when 5 05 mol of ethane are burned in an excess of oxygen?
32
|
| |
|
|
Can you microwave vyvanse and for what purpose?
32
|
| |
|
|
What is the coefficient of H2SO4 when the following equation is properly balanced with the smallest set of whole numbers?
32
|
| |
|
|
Who many moles in 40 1 G?
32
|
| |
|
|
If the reaction N2 g 3 H2 g 2 NH3 g is carried out at constant temperature and pressure?
32
|
| |
|
|
How many moles of ag contains 4 59?
32
|
| |
|
|
If 15 atoms of calcium are fully bonded how many atoms of chlorin at oxygen would be required?
32
|
| |
|
|
What mass of NaOH is needed to precipitate the Fe2 ions from 48 0 mL of 0 200 M Fe NO3 2 solution?
32
|
| |
|
|
How many atoms are there in the primitive cell of diamond?
32
|
| |
|
|
How many grams of 50 wt NaOH has concentration of 18M how many Ml of reagent should be diluted to 1L to give 1M H2SO4?
32
|
| |
|
|
How many atoms bond to silica?
32
|
| |
|
|
What mass of phosphorus is present in 4 76 mol of each of the compounds listed Ca3 PO4 2?
32
|
| |
|
|
How many grams of NaF form when 0 500 mol of HF reacts w excess Na2SiO3?
32
|
| |
|
|
Calculate 8.43x10^26 atoms of silver?
32
|
| |
|
|
How to calculate theoretical number of moles of hydrogen gas produced?
32
|
| |
|
|
What is the mass in grams of 3 75x10 21 atoms of Li?
32
|
| |
|
|
How many moles of hydrogen are needed to react with 0 234 mol of oxygen according to this equation?
32
|
| |
|
|
How many moles of oxygen gas are needed to oxidize 1 mol of glucose?
32
|
| |
|
|
What happens if u mix zinc and copper II sulfate?
32
|
| |
|
|
How much oxygen can a mouse breathe?
32
|
| |
|
|
How many molecules of H2S are required to form 79 0 g of sulfur according to the following reaction Assume excess SO2?
32
|
| |
|
|
How many grams should a 24k necklace be?
32
|
| |
|
|
How many milliliters ML are required to react with moles?
32
|
| |
|
|
How many moles molecules mgso4 7h2o?
32
|
| |
|
|
How many grams of methane CH4 g must be combusted to heat 1 00 kg of water from 25 0 C to 95 0 C assuming H2O l as a product and 100 efficienc?
32
|
| |
|
|
What solute particles are present i formic acid?
32
|
| |
|
|
How to balance sodium peroxide reacting with water to form sodium hydroxide and oxygen gas?
32
|
| |
|
|
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 9.00 of aluminum sulfate,?
32
|
| |
|
|
How many moles of water molecules are contained in g of water?
32
|
| |
|
|
How many carbon dioxide and water molecules would be needed to make 12 glucose molecules?
32
|
| |
|
|
How many grams of ammonia can be produced from 2 32 grams of N2?
32
|
| |
|
|
How many moles of are present in 32 0 of a 2 00 solution of?
32
|
| |
|
|
How much is pure silver ring worth?
32
|
| |
|
|
2KI(aq) Pb(NO3)2(aq) = PbI2 2KNO3?
32
|
| |
|
|
How many grams of O2 are needed to burn 14 0 g of C8H18?
32
|
| |
|
|
How many molecules does C19H28O2 contain?
32
|
| |
|
|
When glucose is consumed it reacts with oxygen in the bodyto produce carbon dioxide water and energy?
31
|
| |
|
|
How many grams of tungsten trioxide must you start with to prepare 4 70 g of tungsten?
31
|
| |
|
|
How many grams of oxygen are required to burn completely 84 9g of carbon?
31
|
| |
|
|
How many MOLECULES are present in a sample of this compound that contains 4 24 moles of 2 3 dimethyl 2 butanol?
31
|
| |
|
|
What is the minimum amount of 5 7 necessary to produce 23 1 of according to the following reaction?
31
|
| |
|
|
How many kcal are produce when 32 0g of carbon hydrogen react?
31
|
| |
|
|
What mas8g of hydrogens of ammonia is produced by 28g of nitrogen and?
31
|
| |
|
|
What is the total number of atoms in 1 mole of Cl2?
31
|
| |
|
|
What mass of nahco3 is required to neutralize 1000.0l of 0.350 M of h2so4?
31
|
| |
|
|
How many moles of H2 can be made from complete reaction of 3 0 moles of Al Given 2 Al 6 HCl 2 AlCl3 3 H2?
31
|
| |
|
|
How many moles of Na2CO3 were present in thr 15Ml sample?
31
|
| |
|
|
How many moles of PL5 can be produced from 59 0 g of Cl2 and excess P4?
31
|
| |
|
|
How many grams of rm NaN _3 are required to produce 11 0 ft 3 of nitrogen gas if the gas has a density of 1 25 rm g L?
31
|
| |
|
|
How much oxygen is required to burn 8.0 gm of methane?
31
|
| |
|
|
How many grams of oxygen are contained in 44 4 g of H2SO4?
31
|
| |
|
|
What is the mass of 5.5 cm3 of platinum in grams?
31
|
| |
|
|
Why woman eat slate pencil not chalk?
31
|
| |
|
|
What would happen if you double the temperature and the pressure stayed the same?
31
|
| |
|
|
How many moles of O2 are needed to burn 1 20?
31
|
| |
|
|
How many moles of oxygen atoms are needed for the reacton in an experiment 1 mol of propane is burned to form carbon dioxidee and water?
30
|
| |
|
|
Will it hurt if my temp cap falls off it is pretty much coming off right now?
30
|
| |
|
|
If a sample of this compound contains 7 3 1024 magnesium ions how many nitride ions does it contain?
30
|
| |
|
|
What is the maximum mass of iron in grams that can be obtained from 454 g 1 00 lb of iron III oxide?
30
|
| |
|
|
How many molecules not moles of nh3 are produced from 4 94 10 4 of h2?
30
|
| |
|
|
How many grams of ethane gas (C2H6) are in a 12.7 liter sample at 1.6 atmospheres and 24C? Show all work used to solve this problem?
30
|
| |
|
|
How many MOLES of chlorine are present in 2 92 grams of boron trichloride?
30
|
| |
|
|
Calculate the percent composition of sodium nitrate (NaNO3)?
30
|
| |
|
|
If g of methane ch4 and g of ammonia hn are combined with excess oxygen how much methane of ammonia will be left when the reaction is finished?
30
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| |
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Which of the following statements about condensation reactions is not true?
30
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| |
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How many moles are there in 37 4 g of sodium sulfide?
30
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| |
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|
NH4Br What is the total of atoms?
30
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| |
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How many dozens of silver atoms are in the piece of jewelry A piece of silver jewelry contains 6 52 10 22 atoms of silver AG?
30
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| |
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How many milliliters of 6 20M HCl solution are needed to obtain 0 100 HCl of?
30
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| |
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|
How to find atom present 0 35 mol of carbondioxide?
30
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| |
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How many grams of CaCl2 are formed when 35 00 mL of 0 00237 M Ca OH 2 reacts with excess Cl2 gas 2 Ca OH 2 aq 2 Cl2 g Ca OCl 2 aq CaCl2 aq?
30
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| |
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|
What solute particles are present in an aqueous solution of ch3coch3?
30
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| |
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How much heat is evolved when 320 g of sulfur dioxide is burned according to the chemical equation shown below?
30
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| |
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For many years, drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams?
30
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| |
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What are the products of the double replacement reaction between potassium chloride and silver acetate 3 points?
30
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| |
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|
How many ATP can be produced from one fat molecule?
30
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| |
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Which statement correctly describes how O2 production would be affected?
30
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| |
|
|
How many moles of NH3 form when each quantity of reactant completely reacts?
30
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| |
|
|
How many moles of carbon atoms are in 4 moles of c6h12o6?
30
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| |
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How many water molecules are in a block of ice containing 1.75 of water?
30
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| |
|
|
How to find moles of c of co2?
30
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| |
|
|
How many moles of oxygen must react with 4 10 mole Al?
29
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| |
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How many liters of carbon dioxide will be formed from 38 liters of carbon monoxide?
29
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| |
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How many grams of KOH are present in 39 0 ml of a 6 83 M KOH solution?
29
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What mass of carbon dioxide is present in 1 00 of dry air at a temperature of 21 and a pressure of 699?
29
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| |
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If excess zinc metal is added to 100 mL of a solution containing 0 70 M AgNO3 how many grams of metal will be displaced a 3 8 b 9 1 c 0 070 d 7?
29
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| |
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How many grams of potassium are in 12 5 g of K2CrO7?
29
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| |
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|
How many water molecules are bound in the formula of Fe NH4 2 SO4 2?
29
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| |
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How to find total molar concentration of KCl?
29
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What is the osmotic pressure of a solution made from dissolving 70 0 of glucose in 800 of water at 7 00?
29
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| |
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If you started with 30 0 grams of and 40 0 grams of how many grams of would be produced assuming 98 yield?
29
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|
How many GRAMS of nitrogen are present in 4.71 moles of nitrogen dioxide?
29
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| |
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|
If 59 3 grams of potassium chlorate decomposes how many grams of oxygen gas can be produced 2 KClO3 2 KCl 3 O2?
29
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| |
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How many moles of O2 are required for the complete combustion of 2 2 g of C3H8 to form CO2 and H2O?
29
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| |
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|
What maximum mass of carbon dioxide is produced by the complete combustion of 12 0 of this fuel mixture?
29
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| |
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|
How much heat in kilojoules is evolved or absorbed in each of the following reactions burning propane?
29
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| |
|
|
How many grams of CaCO3 are needed to neutralize 25ml of 0 1M HCl?
29
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| |
|
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What is the volume of hydrogen gas at stp released from 2 30g of sodium metal and water?
29
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| |
|
|
Will taking magnesium oxide make me hungry?
29
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| |
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|
How many grams of water can be cooled from 44 to 19 by the evaporation of 38 of water The heat of?
29
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| |
|
|
How many moles of hydrogen peroxide decompose to give 1 00 mol of oxygen?
29
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| |
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|
Assume atmospheric pressure of 1.00 atm, a room temp of 20 C, and ideal behavior?
29
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| |
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|
If 4 moles of hydrogen react with 3 moles of oxygen which of the reactants was in excess leftover?
29
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| |
|
|
If one sample of CaC2 contains 12 04 x 1023 atoms of carbon how many atoms and how many grams of calcium are also in the sample?
29
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| |
|
|
How many moles of K2SO4 are in 15 0 g of K2SO4?
29
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| |
|
|
How many moles of oxygen atoms are present in 3 0 moles of sulfur dioxide?
29
|
| |
|
|
How many moles of nitrogen atoms are in 12 moles of NH4NO3?
29
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| |
|
|
How do I figure out how many moles of Na3Po4 would be required to react with 1 0 mole of AgNO3?
28
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| |
|
|
What is the density of a 450 g block of gold at 25 degrees celsius?
28
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| |
|
|
I licked battery acid will i die?
28
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| |
|
|
I licked battery acid then spit it out what will happen?
28
|
| |
|
|
How to find the atoms in element H6C3O?
28
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| |
|
|
How do i calculate the number of moles of Cl atoms in 1 20 10 24 formula units of magnesium chloride?
28
|
| |
|
|
How many moles are equivalent to 3 58 10 23 formula units of ZnCI2?
28
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| |
|
|
How many moles of are produced when 3 5 reacts with 3 00 moles of C2H2?
28
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| |
|
|
How many moles of oxygen would be needed to produce 88g of co2?
28
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| |
|
|
How many atoms of hydrogen are present in 2 95 mols of NH3?
28
|
| |
|
|
What is the final volume if 20 L methane reacts completely with 20 L oxygen CH4 g 2 O2 g CO2 g 2 H2O at 100 C and 2 atmospheres 1 10 L 2?
28
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| |
|
|
How many moles of water H2O are present in 75 0 g H2O?
28
|
| |
|
|
What characteristics do atoms of argon 40 pottasium 40 and calcium 40 have in common?
28
|
| |
|
|
What is the teoretical yield of chromium needed to react with an excess of CuSO4 to produce 27 0g Cu?
28
|
| |
|
|
How many mols are in Na2s2O4?
28
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| |
|
|
Your body reacts sugar with oxygen to form carbon dioxide and water according to the following chemical?
28
|
| |
|
|
Your body reacts sugar with oxygen to form carbon dioxide and water according to the following chemical C6H12O16 6 O2 %u2192 6 CO2 6H20 sugar oxyg?
28
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| |
|
|
A student reacted 11.52 g of ethanol with 120.0 g of oxygen gas to produce carbon dioxide and liquid water. determine how much water is produced?
28
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| |
|
|
If volume doubles what happens to its temperature?
28
|
| |
|
|
How much does a tank of nitric gas cost?
28
|
| |
|
|
What is the total mass in grams of O2 in a room measuring 18 0 8 0 11 0 ft3 if the air in the room is at STP and contains 20 95 O2?
28
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| |
|
|
What volume of carbon dioxide is produced when 88 2 g of calcium carbonate reacts completely according to the following reaction at 25oC and 1 atm?
28
|
| |
|
|
How many moles of cl are in 2 55 moles of magnesium chloride?
28
|
| |
|
|
Which of the following correctly describes Medicaid?
28
|
| |
|
|
What limiting factors for preparing budget company?
28
|
| |
|
|
How much CO2 is produced when 40000 g of C2H2 burns completely Answer in units of g?
28
|
| |
|
|
How many atoms in a 1 25 carat diamond?
28
|
| |
|
|
Can zinc cause gas pains?
28
|
| |
|
|
How many oxygen atoms are in 2 62 g of water?
28
|
| |
|
|
Which will ahve the greater number of ions 1 mole of nickle II or 1 mole of copper?
28
|
| |
|
|
How many moles of Magnesium are present in 47 9 grams of Magnesium Phosphate?
28
|
| |
|
|
How many grams of barium sulfate are produced if 25 34 ml of 0 113?
28
|
| |
|
|
How many particles in benzene?
28
|
| |
|
|
Can you lose weight with Magnesium Citrate Laxative Solution?
28
|
| |
|
|
How many moles of product would be oproduced if 500 mole for CO2?
28
|
| |
|
|
KClO3 heated and decomposed to form 77.0 grams of KCl, how much grams of O2 produced in this reaction?
28
|
| |
|
|
How many atoms of carbon in 3CH3CH2O?
28
|
| |
|
|
How many photons are required to heat 200 ml of coffee from 24 C to 61 C?
28
|
| |
|
|
When 20 0 mL of a 0 250 M NH4 2S solution is added to 150 0 mL of a solution of Cu NO3 2 a CuS precipitate forms The precipitate is then filter?
28
|
| |
|
|
What is the radius of a tin atom in meters (m)?
28
|
| |
|
|
How many kilograms of iron were needed to produce this volume of H2 if the temperature was 24 C?
28
|
| |
|
|
What alkali metal produces a purple flame?
28
|
| |
|
|
How many kilograms of iron were needed to produce this volume of H2 if the temp was 24 degrees celcious?
28
|
| |
|
|
What volume of 0 200 M Na3PO4 is required to precipitate all the lead II ions from 150 0 mL of 0 500 M Pb NO3 2?
28
|
| |
|
|
What happens when FeCl3 reacts with NaOH?
28
|
| |
|
|
How much heat is released when moles of oxygen gas react?
28
|
| |
|
|
How many grams of Oxygen atoms were in the KClO3 in the original sample?
28
|
| |
|
|
How many kilojoules of heat are released when 28 0 of reacts completely with to form at constant pressure?
28
|
| |
|
|
How to transfer from 20 grams to moles?
28
|
| |
|
|
If the density of octane is 0.703 g/mol how many grams of co2 is produced in the combustion of 40L of octane,?
27
|
| |
|
|
Which is the limiting reagent in the following...3mol O and 3mol S,4mol O and 3mol S,5mol O and 3mol S?
27
|
| |
|
|
How much oxygen required for the complete combustion of 5 dm3 of butane?
27
|
| |
|
|
What does the s mean when a piece of silver jewlry says s925?
27
|
| |
|
|
Calcium metal has density of 1.55 g/cm3 and chrystallizes in a cubic unit cell with an edge length of 558.2 pm. How many ca atoms are in one unit cel?
27
|
| |
|
|
How many grams of CaCO3 DO YOU NEED IN AN ANTACID TABLET TO NEUTRALIZE 20ml of stomach acid?
27
|
| |
|
|
How many moles of oxygen are needed to completely combust 4 50 moles of butane C4H10?
27
|
| |
|
|
How many equivalents are in 0 60 mole of mg2?
27
|
| |
|
|
In 2% dextrose solution will a cell undergo crenation or hemolysis?
27
|
| |
|
|
How many moles of NH3 are produced when 1 4 mol of H2 react?
27
|
| |
|
|
What happens when copper chloride hydrate is heated?
27
|
| |
|
|
If the only way her body has to keep cool is by evaporation how many kilograms of water must she lose to perspiration each hour to keep her body temp?
27
|
| |
|
|
How many grams of methane CH4 g must be combusted to heat 1 15 kg of water from 26 0 C to 93 0 C assuming H20 l as a product and 100 efficancy i?
27
|
| |
|
|
How many grams of calcium phosphate can be produced when 89 3 grams of calcium chloride reacts with excess sodium phosphate Unbalanced equation?
27
|
| |
|
|
Which of the following statements are true Check all that apply The average speed of gas molecules increases with temperature All the gas molecules in?
27
|
| |
|
|
If you had excess chlorine how many moles of of aluminum chloride could be produced from 24 0 g of aluminium?
27
|
| |
|
|
What two forms of id do i need to get a job in pa?
27
|
| |
|
|
If 50 0 g of O2 are mixed with 500 g of H2 and the mixture is ignited what mass of water is produced?
27
|
| |
|
|
Which of the following statements are true Check all that apply The kinetic energy of a molecule cannot determine its speed All the gas molecul?
27
|
| |
|
|
How much energy is released by the combustion of 1 51 mol of C8H18?
27
|
| |
|
|
Which salt solution is more concentrated solution a which contains 18g of salt in 6 L of water or solution B which contains 24g of salt in 12 L?
27
|
| |
|
|
What volume in mL of oxygen are required to react completely with 138 mL of butane at the same pressure?
27
|
| |
|
|
What is the theoretical yeild of a reaction if 28 0 g of a product were actually produced from a reaction with a 72 yeild?
27
|
| |
|
|
How many milliliters of 0 145 M HCl are needed to completely neutralize 60 0 mL of 0 109 M Ba OH 2 solution?
27
|
| |
|
|
How many moles of 02 are needed to react with 4 0 moles of C2H6O?
27
|
| |
|
|
Why does the birthday formula add up to 111?
27
|
| |
|
|
When NH3 is prepared from 28 g N2 and excess H2 the theoretical yield of NH3 is 34 g When this reaction is carried out in a given experiment only?
27
|
| |
|
|
When heated calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3 s CaO s CO2 g How many grams of c?
27
|
| |
|
|
Why group 1 elements forms compounds?
27
|
| |
|
|
How many oxygen atom are in a 9 g sample of water contains?
27
|
| |
|
|
What is the correct form of the conversion factor needed to convert the number of moles of H2O to the number of moles of NH3 produced?
27
|
| |
|
|
How many moles of fe are produced for every one fe2o3 mole consumed?
27
|
| |
|
|
How many moles of PCl5 can be produced from 24 0 g P4?
27
|
| |
|
|
What is the number of molecule in 8 00 moles of h2s?
27
|
| |
|
|
How many grams of oxygen can be produced from the decomposition of 100 g of kclo3?
27
|
| |
|
|
How many oxide ions are present in 0 30 mol of sodium oxide?
27
|
| |
|
|
How many moles of Cu are in 1 48 x 1025 Cu atoms?
27
|
| |
|
|
If 2 0 moles of N2 react with 6 0 moles of H2 to form NH3 calculate the work done in joules against a pressure of 1 0 atm at 26 C?
27
|
| |
|
|
What is the theoretical yield of aluminum oxide if 2 40 of aluminum metal is exposed to 2 10 of oxygen?
27
|
| |
|
|
If 5 0 moles of Al react with excess O2 how many moles of Al2O3 can be formed?
27
|
| |
|
|
How many grams of co2 are produced burning propane?
27
|
| |
|
|
How many moles of h2o are produced from combustion of?
27
|
| |
|
|
What is the maximum number of hydrogen bonds that can form between two acetic acid molecules?
26
|
| |
|
|
What is the maximum amount of that can theoretically be made from 235 of and excess oxygen?
26
|
| |
|
|
How many moles of ions are there in 5 moles of iron sulphate?
26
|
| |
|
|
If 0 50 moles of N2 are available to react with 2 moles of H2 a Which reactant will be limiting b How many grams of NH3 will be produced c Ho?
26
|
| |
|
|
How many grams of carbonic acid is produced when 55 liters of carbon dioxide is pressed into?
26
|
| |
|
|
How many grams of C are combined with 8 42 x 1023 atoms of H in the compound C4H10?
26
|
| |
|
|
How gold bar really look like?
26
|
| |
|
|
How many moles of hydrogen ions would be required to neutralize 89 moles of hydroxide ions?
26
|
| |
|
|
How much water is produced when you combine hydrogen with 5 grams of oxygen?
26
|
| |
|
|
How many nitrogen atoms in 3 4 moles of ammonia?
26
|
| |
|
|
What is the difference between endocytosis and exocytosis?
26
|
| |
|
|
How many grams of Mg OH 2 will be needed to neutralize 25 mi of stomach acid if stomach acid is 0 10 M HCL?
26
|
| |
|
|
How many grams of Al will react with 8 0 L of O2 at STP?
26
|
| |
|
|
What mass of KO2 is needed to consume 20 0 CO2?
26
|
| |
|
|
When hydrogen is burned in oxygen water is formed according to the reaction 2h2 O2 2 2h20 How many moles of H2 and how many of O2 are needed to?
26
|
| |
|
|
How many grams of methane must be combusted to heat 1 05 of water from 26 0 to 91 0 assuming as a product and 100 efficiency in heat transfer?
26
|
| |
|
|
How many molecules of aspirin C9H8O4 are there in a 87 0 mg tablet of aspirin?
26
|
| |
|
|
How many moles of nitrogen are in 90 0g of nitrous oxide?
26
|
| |
|
|
How many mole of water can crystalize with 1 mole of MgSo4?
26
|
| |
|
|
What volume would 24 g of oxygen gas occupy at stp?
26
|
| |
|
|
How many grams of H2O are required to react with 28 0 g of NO2?
26
|
| |
|
|
Is the dehydration and hydration of CoCl2 reversible?
26
|
| |
|
|
How many kj in 1 mole of C8H18?
26
|
| |
|
|
How do you find how many moles of compound are present in 1 00g of each of the compounds in exercice 33?
26
|
| |
|
|
How many grams of calcium carbonate, CaCO3, must be decomposed to produce 10.5L of carbon dioxide, CO2, at STP?
25
|
| |
|
|
How many atoms are in the unit cell of C60 in fcc?
25
|
| |
|
|
Will a decomposition body produce co2?
25
|
| |
|
|
How much heat in kcals is needed to produce 50 0 g of oxygen?
25
|
| |
|
|
How many moles of zinc chloride are produced from the reaction of three moles of zinc and an excess of hydrolic acid?
25
|
| |
|
|
Gold value of 10k pin weighing 22grams?
25
|
| |
|
|
How many kilojoules of heat are absorbed when 7 40 g of mgo is decomposed into mg and o2 at constant pressure?
25
|
| |
|
|
Which of the following does NOT directly result from application of heat?
25
|
| |
|
|
How many mol photons are required to reduce 1 mol CO2?
25
|
| |
|
|
How many grams of chlorine are present in 1 22 moles potassium chlorate?
25
|
| |
|
|
When separated from a water solution CuSO4 forms a hydrate with 5 water molecules per formula unit If 39 g of an hydrous CuSO4 are dissolved in water?
25
|
| |
|
|
How many grams of H2O will be formed when 32 0g H2 is mixed with 16 0 g of 02 and allowed to react to form water?
25
|
| |
|
|
How much heat is produced in burning 8 of ethylene under standard conditions if reactants and products are brought to 298 and is formed?
25
|
| |
|
|
How many molecules of are produced when using 32 9 g of?
25
|
| |
|
|
How many liters of oxygen are needed to react with 34 8 g of methane CH4 at STP CH4 2 O2 CO2 2 H2O?
25
|
| |
|
|
How many gold atoms span 3 5 mm?
25
|
| |
|
|
Which of the following describes an oxidation?
25
|
| |
|
|
How many grams of oxygen are required to produce 1 mole of H2O?
25
|
| |
|
|
How long does tylenol dissolves in cold water?
25
|
| |
|
|
How much heat in kilojoules is released on reaction of 6 10 rm g of rm Al?
25
|
| |
|
|
What mass of CO2 will be produced when 100 g of C8H18 react completely in the following equation?
25
|
| |
|
|
How much carbon dioxide can be formed with 42 g of carbon in a methane and oxygen reaction?
25
|
| |
|
|
How many grams are in 4 moles Cu NO2 2?
25
|
| |
|
|
What`s the balance equation of CuSO4?
25
|
| |
|
|
What is the mass of 4 50 x 1022 atoms of gold Au?
25
|
| |
|
|
IF OU HEAT 20 00 GRAMS OF HYDRATE AND DRIVE OFF THE WATER WHAT IS THE WEIGHT OF THE ANHYDROUS SALT REMAINING?
25
|
| |
|
|
How to find how many electrons exchanged in redox reactions?
25
|
| |
|
|
If 16 0 grams of aluminum oxide were actually produced what is the percent yield of the reaction below given that you start with 10 0 g of Al and 19?
25
|
| |
|
|
How many grams of O2 g are needed to completely burn 80 9 g of C3H8 g?
25
|
| |
|
|
When 2 mol of solid magnesium mg combines with 1 mole of oxygen gas o2 2 mol of solid magnesium oxide mgo is formed and 1204kj?
25
|
| |
|
|
How many ATP will 10 moles of glucose yield?
25
|
| |
|
|
When NaOH is added to a FeCL3 solution what happens?
25
|
| |
|
|
How many grams of tungsten oxide must you start with to prepare 5 90g of tungsten?
25
|
| |
|
|
If 21 0 grams of aluminum oxide were actually produced what is the percent yield of the reaction below given that you start with 15 0 g of Al and 34?
25
|
| |
|
|
What is the limiting reactant for the reaction below given that you start with 10 0 grams of Al and 19 0 grams of O2 Reaction 4Al 3O2 2Al2O3?
25
|
| |
|
|
How many moles of n2 are needed to react with 7 50 mol of o2?
25
|
| |
|
|
How many grams of O2 are needed to react with 7 90 NH3?
25
|
| |
|
|
How many moles of CO2 are produced when 5 25 mol of ethane are burned in an excess of oxygen?
25
|
| |
|
|
Would happen to red blood cells when placed in 3 3 glucose solution?
25
|
| |
|
|
Which of the following statements is true of green grass?
25
|
| |
|
|
If you react 4 grams of hydrogen with 16 grams of oxygen how many garms of water is produced?
25
|
| |
|
|
What is 81D 2hours sleep mean?
25
|
| |
|
|
What happend if you dont get enough oxygen when you exercise?
25
|
| |
|
|
How many moles of h2O are produced when 35 moles of O2 are consumed?
25
|
| |
|
|
If 7 41 mol of ethane C2H6 undergo combustion according to the unbalanced equation C2H6 O2 CO2 H2O how much oxygen is required?
25
|
| |
|
|
What is the amount in mole of 0 35 grams of hydrogen?
25
|
| |
|
|
How long does it take to produce one liter of o2?
25
|
| |
|
|
How many grams of CO2 are produced from 18 5g of oxygen gas and excess propane?
25
|
| |
|
|
How many grams are needed to have 0 100 mol in CH3OH?
25
|
| |
|
|
I am 58 what will a physcial consist of?
25
|
| |
|
|
How many atoms of carbon are in a 500mg tablet of aspirin?
25
|
| |
|
|
How much does peco charge per kwh?
25
|
| |
|
|
Which of the following compounds will not produce O2 gas when it decomposes?
25
|
| |
|
|
If a compound contains 12 carbon atoms 22 hydrogen atoms and 11 oxygen atoms qhat is the compound?
25
|
| |
|
|
How many atoms are in 1 mol of phosphorus trifluoride?
25
|
| |
|
|
How many kilocalories are released by freezing 2 5 mol of H2O?
25
|
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What is the mass of 1 molecule of CO2?
25
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What distance does electromagnetic radiation travel in 45 0 mu s?
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If you have 3.90 moles of h2o how many molecules do you have? is it true that if you have 1 moles of molecules you have 6.02 times 10 to the 23?
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How many milliliters of 0.0900 M K2Cr2O7(aq) will react with 0.029 mol of FeCl2(aq)?
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How many moles of sucrose are present in 20 0 sugar solution?
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When NH3 is prepared from 28 g of N2 and excess H2, the theoretical yield of NH3 is 34 g. When this reaction is carried out in a given experiment, onl?
25
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What is the theoretical yield of aluminum oxide if 2 40 mol of aluminum metal is exposed to 2 10 mol of oxygen?
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How many grams of calcium carbonate are needed to produce 43 0L?
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If 19 2 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O how many grams of H2O are produced in this reaction?
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How many grams of magnesium oxide are formed when 13 2 L of oxygen gas measured at STP completely reacts with magnesium metal according to this rea?
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How many grams are in 4 85 moles of KNO3?
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If 3.00 mol of magnesium and 3.00 mol of hydrochloric acid are reacted, how many grams of excess reactant are left over?
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How many moles of br2 are needed to produce 5 moles?
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How mANY SAME LITERS CAN YOU REGISTER ON AKC?
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How many molecules in 0 0153 moles?
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How many moles in Cr?
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How many moles of oxygen gas react to yield NO2?
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How many moles are in 16 0 mg of NO2?
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Which bank sells silver in montreal?
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How many grams of sulfur dioxide can be produced when 68 0g lead II sulfide react?
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How many moles are in 212 grams of sodium carbonate?
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When 2 13 moles of C3H8 burn in excess oxygen how many moles of CO2 will be formed?
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What is the molar mass for H2O2?
25
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How many water molecules are present in 1.00 mol of pure water?
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What is significance does carbon-12 have in the terms of atomic mass?
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What maximum mass of carbon dioxide is produced by the complete combustion of 15 0 kg of this fuel mixture?
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How many moles of B are present in 20 gram of Na2B4O7?
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How many rm O_2 molecules are needed to react with 5 28 g of rm S?
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How many grams of aluminum oxide are produce according to the reaction below given that you start with 10 0 g of al and 19 0 grams of 02 reactions 4Al?
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What is the oxygen to hydrogen mass ratio for H2O2?
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What mass of PCl5 will be produced form 53 g Cl2 and 27 g P4?
25
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How many moles is 27 4 cm3 of platinum The density of platinum is 21 45 g cm3?
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How many molecules are in 2 5 moles of C10H8NO2?
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How much energy does liquid octane release when combusted in a 20 4 gal fuel tank?
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How many grams of methane must be combusted to heat 1 20 of water from 25 0 to 88 0 assuming as a product and 100 efficiency in heat transfer?
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How much oxygen gas in grams can be prepared from 72 5 of potassium chlorate?
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How many moles of co2 are in 77L?
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How many moles of each reactant were there if 13 7 moles of N2 is produced?
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How many grams of Al will react with 16 0 at STP?
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How many grams of oxygen are present in 76 8 g of CO2?
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How many hydrogen atom are there in 2 0 moles of ch4?
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When 37 5 L ammonia and 41 5 L oxygen gas at STP burn nitrogen monoxide and water are produced?
25
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What is the name of a compound of Sr2 and I?
25
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How many molecules of CO2 are in 88 grams of CO2?
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How many grams are in a mole of each of the following substances Ti?
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How many grams of phoshphorus are in a sample of Ca3 PO4 2 that contains 56 0 g of calcium?
25
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How many moles of copper are in the sample of 5072?
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How many kilojoules of heat are absorbed when 7 5 grams of MgO are decomposed into Mg and O2 at constant pressure?
25
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How much aluminum to displace silver in 11 1g silver nitrate?
25
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How many grams of aluminum oxide are produced from 27g of al?
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What does cuso4 5 h20 decompose to?
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How many moles are present in a 0 856g sample of an aluminum can?
25
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What is the total molar concentration of ions in each of the following solutions 1 300M of ch3oh?
25
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How much heat is given off if 2 2 moles burns completely?
25
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Can you microwave vyvanse to change its chemical makeup?
25
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How many moles of molecular oxygen will be needed for the complete combustion of 100 0 g of sulfur dioxide?
25
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How many moles are thiere in 1g of gold?
25
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How many dozens of silver atoms are in a piece of silver jewelry containing 5 22 10 22 atoms of silver?
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How many moles of HNO3 are present in 35 3 mL of a 2 20 M solution of nitric acid?
25
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How many moles of nitrogen are in 255g of Ca NO3 2?
25
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How to match two pairs of earing?
25
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Which area of the electromagnetic spectrum does paschen relate to?
25
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How many moles of boron are in 1 21 x 10 24 boron atoms?
25
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My dad had tube in is mouth then he want to put in the throat?
25
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Which has a greater mass 0 24 mol of aspirin or 42 0 grams of aspirin?
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What is the empirical formula for a compound made up of 6 66moles of C and 19 8moles of H?
25
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How many moles of O2 are needed to burn 1 10g of C8H18?
25
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How many grams of CaCl2 are formed when 20 00 mL of 0 00237 M Ca OH 2 reacts with excess Cl2 gas 2 Ca OH 2 aq 2 Cl2 g Ca OCl 2 aq CaCl2 s?
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How many grams of cacl2 are formed when 35mL of 0 00237?
25
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What is the molecular weight acetic acid that form 2 moles of CO2 assuming complete combustion?
25
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Consider the reaction between 50.0 mL liquid methanol, CH
3
OH(density
0.850 g/mL), and 22.8 L O
2
at 27
C and a pressureof 2.00 atm?
25
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Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equa?
25
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How many ions are formed in the dissociation of MgSO4?
25
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If the reaction shown below is exothermic, the energy level of the reactants is ________.
H2 + O2 → 2H2O?
25
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If i score a 85 on the nys corrections test is that good enough?
25
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If 25 0 of MgSO4 7H2O is thoroughly heated what mass of anhydrous magnesium sulfate will remain?
25
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Calculate the number of H2O molecules in
1.00 cm3 of water at 0C (density = 0.99987
g/cm3)?
25
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What mass of water is needed to evaporate?
25
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How many grams of CO2 and grams of H2O are produced when 52 0 g C2H2 burns in oxygen?
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How many atoms of oxygen are represented in 3 Ba ClO3 2?
25
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How many molecules of H2S are required to form 79 0 g of sulfur according to the followingreaction Assume excess SO2 2 H2S g SO2 g 3 S s 2?
25
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How to calculate the mass of aspirin in a tablet?
25
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How much is 41 grams of silver worth?
25
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What is the empirical formula of a compound containing 20 grams hydrogen and 80 grams of carbon?
25
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How many moles of atoms of each element are in one mole of NH4 2CO3?
25
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How many moles of molecules are in hydrogen nitrate HNO3?
25
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When magnesium carbonate MgCO3 reacts with nitric acid HNO3 magnesium nitrate and carbonic acid form Carbonic acid then breaks down into water a?
25
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How many air molecules are in a 15 ft x 12 ft x 10 ft room Assume atmospheric pressure of 1 00 atm a room temperature of 20 0 C and ideal behavior?
25
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How many moles of potassium chloride must be added to the solution to completely precipitate all of the silver?
25
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How many photons will be required to raise the temperature of 2 5 g of water by 2 0 K?
25
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When aqueous solutions of Fe2 SO4 3 aq and Pb NO3 2 aq are mixed an insoluble salt forms Which of the following represents the correct net ionic e?
25
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How many grams of calcium carbonate is needed to neutralize 20 ml of stomach acid?
25
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2A 3B = 3C
How many moles of B are required to react with 6 mol of A?
25
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How many moles of particles are in CH3OH?
25
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What mass of NaN3 s must be reacted in order to inflate an air bag to 60 0 L at STP?
25
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What is the mass in grams of 3 40x10 22 atoms He?
25
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What is the number of moles of air in the flask?
25
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|
How much heat is released from the dissolution of 7 50g of cacl2?
25
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|
Create a chart that shows the different isotopes of hydrogen?
25
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How many liters of O2 g are needed to react completely with 56 0 L of CH4 g at STP to produce CO2 g and H2O g?
25
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How many total moles of gaseous products form?
25
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|
How many moles of ammonia contain 1 51 1024 NH3 molecules?
25
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|
1.00 mole of Al(NO3)3 contains how many
oxygen atoms? The molar mass of Al(NO3)3
is 213.0 g/mol?
25
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|
If the enthalpy change of reaction is 18.0 kJ, how many grams of hydrogen gas are produced?
25
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|
Is the dehyration and hydration of COcl2 reversible?
25
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|
How many iron atoms are contained in 354 g of iron?
25
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| |
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|
How many moles are in 28 01 grams of V?
25
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| |
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|
Given the equation Mg 2HCL ---> MgCl2 H2 how many moles of hydrochloric acid are needed to react with .50 mol of magnesium?
25
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|
How many ions of each type are produced when Na3PO4 is dissolved in aqueous solution?
25
|
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|
|
How many moles are in 156 grams of potassium?
25
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|
How many calcium atoms are in 45 gram?
25
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|
What volume of solution would be required to completely neutralize mL of 10 solution?
25
|
| |
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|
How many molecules in 5g of water?
25
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| |
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|
How many moles of O are in 11 6 mol Fe NO3 3?
25
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| |
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|
What is the emperical formula for 11.66g of iron and 5.010g of oxygen?
25
|
| |
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|
How many moles of oxygen do we breathe per breath?
25
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| |
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|
If 15 moles of ch4 are reacted what is the volume of co2 in liters produced at?
25
|
| |
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|
When 4 moles of aluminum are allowed to react with an excess of chlorine gas, CL2, how many moles of aluminum chloride are produced?
25
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|
How many moles of oxygen will be needed to react 0 38 mol of C3H8 according to the following equation?
25
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| |
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|
How many moles of ions are in 25 g of mgcl2?
25
|
| |
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|
What characteristics do atoms of argon 40potassium 40 and calcium 40 have in com mon?
25
|
| |
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|
Calcultae the volume of 0.112 M Hydrochloric acid which would react exactly with a 25.0 cm3 sample of the sodium hydroxide solutions?
25
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| |
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|
How many atoms of hydrogen are present in 4 0g ammonia?
25
|
| |
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|
How many atoms is in 2h2SO4?
25
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| |
|
|
What is the balanced equation for copper II sulfate pentahydrate water?
25
|
| |
|
|
What is the formula for Na2co3 and mg2?
25
|
| |
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|
How many oxygen atoms are there in three sulfur dioxide molecules?
25
|
| |
|
|
How many milliliters of 120 M HCl are needed to completely neutralize 50mL of 101M Ba OH 2 solution?
25
|
| |
|
|
What percent of the original mixture was KClO3 which decomposes as follows?
25
|
| |
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|
HOW DO YOU Calculate the amount of heat transferred when 45 0 CH3OH of is decomposed by this reaction at constant pressure?
25
|
| |
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|
If you have 4 5 moles of methane how many grams of oxygen would be needed to completely react with it?
25
|
| |
|
|
How many moles of oxygen atoms are in 6 54 grams of potassium hydroxide?
25
|
| |
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|
What mass of naturally occuring?
25
|
| |
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|
How many atoms of hydrogen are in 1 mole of penicilin?
25
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|
How many hydrogen atoms are there in 2 0 moles of CH4?
25
|
| |
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|
How many NaCl formula units does it contain with 15 mg?
25
|
| |
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|
How many moles of hemoglobin are present in a human body?
25
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| |
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|
How many moles of I2 reacted with the vitamin C?
25
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| |
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|
How many atoms of oxygen would it take to form a compound with aluminum?
25
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| |
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|
If the enthalpy change on reaction is 11 0 kJ how many grams of hydrogen gas are produced?
25
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