In the following reaction:
Mg + 2HCl → MgCl2 + H2
How many liters of H2 would be produced if you started with 24.3 g of Mg?
44.8 L H2
22.4 L H2
44.8 g H2
22.4 g H2
According to the following equation:
2H2 + O2 → 2H2O
How many grams of water will be produced from 1.0 mol hydrogen gas?
36.0 g H2O
18.0 g H2O
17.0 g H2O
34.0 g H2O
What must be true before any stoichiometry problem can be started?
The answer must always be in grams.
The answer must always be in moles.
The equation must be balanced
Nothing you can just start.
According to the following chemical equation:
2KClO3 → 2KCl + 3O2
How many grams of KClO3 are needed to produce 32.0 g of O2?
81.7 g KClO3
163.4 g KClO3
122.5 g KClO3
Not enough information is given to solve this problem.
According to the following chemical equation:
N2 + 3H2 → 2NH3
How many grams of hydrogen are needed to completely react with 28.0 grams of nitrogen?
6 g H2
169 g H2
1.00 g H2
2.00 g H2