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How many grams of hydrogen are needed to completely

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Reference no: EM131946924

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

Reference no: EM131946924

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