Stoich Test Review
Authored by Tim Healy
Chemistry
11th Grade
NGSS covered
Used 2+ times
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81 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the mole-to-mole ratio for hydrogen and oxygen in the balanced equation: 2 H2 + O2 -> 2 H2O?
1:2
1:1
3:1
2:1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How many moles of H2O are produced when 4 moles of O2 react? 2 H2 + O2 -> 2 H2O
8 mol
2 mol
6 mol
10 mol
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2:3
1:2
1:3
3:2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
___KNO3 → ___KNO2 + ___O2
What coefficients are needed to balance the reaction?
2, 2, 1
2, 3, 2
1, 2, 2
1, 3, 1
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Using the following equation:
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the reaction 2H2 + O2 → 2H2O, what is the mole ratio of hydrogen to water?
2 : 2
2 : 1
1 : 2
4 : 4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the molar mass of NaCl?
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