
Stoichiometry: Week in Review
Authored by Ryan Humphrey
Chemistry
11th Grade
NGSS covered
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molar mass of table salt (NaCl)?
116.89 g/mol
35.45 g/mol
22.99 g/mol
58.44 g/mol
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molar mass of NaOH?
40.00 g/mol
38.99 g/mol
23.99 g/mol
57.00 g/mol
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In the equation 2 Al2O3 --> 4 Al + 3 O2, what is the mole ratio of aluminum to oxygen (aluminum is asked for, oxygen is given)?
10/6
3/4
4/3
2/3
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In the reaction 2 H2 + O2 → 2 H2O what is the mole ratio of oxygen to water
1/2
2/1
3/4
4/3
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
KNO3 --> KNO2 + O2
What coefficients are needed to balance the reaction?
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False. You must convert grams to moles to do stoichiometry.
Tags
NGSS.HS-PS1-7
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