# Stoichiometry Review Questions

## Quiz by razia abdul raouf

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6 questions
• Q1
What coefficient should be used to make the following equation balanced? N2+O2--> _NO
2
3
1
4
60s
• Q2
Mole ratios are obtained from the
balanced chemical equation
periodic table
molar mass
60s
• Q3
N2 + 3H2 → 2NH3 What is the mole ratio between Nitrogen and Ammonia in the above reaction?
2 moles NH3 / 1 moles N2
1 moles NH3 / 2 moles N2
1 moles N2 / 3 moles NH3
60s
• Q4
For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of Mg to moles Fe?
2 mol Mg/ 3 mol Fe
3 mol MgO / 2 mol Fe
3mol Mg / 2 mol Fe
60s
• Q5
What is the first thing you must do to solve a stoichiometry problem?
Write the mass given
Write the moles given
Write a Balanced Equation
60s
• Q6
2H2 + O2 → 2H2O How many moles of water can be produced if 8 moles H2 are used?
8 moles
2 moles
4 moles
16 moles
60s

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