Stoichiometric Calculations Practice
Authored by Jennifer Smith
Chemistry
10th Grade
NGSS covered
Used 121+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the following balanced chemical equation
2K + F2 --> 2KF
how many moles of KF are present?
2 mol of KF
1 mol KF
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.0 mol of aluminium reacts with oxygen to form aluminium oxide. What is the amount of oxygen, in mol, needed for complete reaction?
4Al(s) + 3O2(g) → 2Al2O3(s)
1.5
3.0
4.5
6.0
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
2Na + 2H2O → 2NaOH+ H2
How many grams of hydrogen are produced if 120 g of Na are available?
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
CH4 + 2 O2 → CO2 + 2 H2O
How many moles of carbon dioxide are produced from the combustion of 110. g of CH4?
13.7 mol
2.75 mol
6.11 mol
6.85 mol
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
B2H6 + 3O2 -->2 HBO2 + 2 H2O
What mass of O2 will be needed to burn 36.1 g of B2H6?
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4 Al + 3 O2 –> 2 Al2O3 How many moles of aluminum would be needed to completely react with 45 grams of O2?
1.05 moles
3.75 moles
1.875 grams
1.875 moles
Tags
NGSS.HS-PS1-7
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