
Unit 7 Stoichiometry
Authored by David Rosenbaum
Chemistry
10th - 12th Grade
NGSS covered
Used 27+ times

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18 questions
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1.
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
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the measured amount of a product obtained from a chemical reaction?
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Cl2 + 2 KBr → Br2 + 2 KCl
How many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Identify the limiting reagent when 6.00 g HCl combines with 5.00 g Mg to form MgCl2.
Mg + 2HCl --> MgCl2 + H2
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When does a chemical reaction stop?
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
N2 + 3H2 → 2NH3
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
5 mins • 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
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