Stoichiometry Review
Quiz
•
Science
•
10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a Excess Reagent?
amount you end with
what you run out of first
what you have left over
what you start with
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fe (s) + S (l) --> FeS (s)
In the experiment above, 7.62 g of Fe are allowed to react with 8.67 g of S.
How much FeS is formed?
14.8 g
12.2 g
13.7 g
19.9 g
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using the diagram, determine the limiting reactant, the product formed is water.
oxygen
hydrogen
none of the reactant are limiting
both hydrogen and oxygen
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
P4 + 6Cl2 --> 4PCl3
The reaction of 75.0g P4 with excess chlorine gas produces 110g PCl3 in lab. Find the theoretical yield and calculate percent yield for the reaction.
78%
64%
27%
33%
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.
16%
116%
85%
76%
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Mole ratios are obtained from the
balanced chemical equation
periodic table
molar mass
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the mole ratio of H2O to H3PO4 in the following chemical equation? P4O10 + 6 H2O --> 4 H3PO4
6:4
4:6
1:3
3:1
Tags
NGSS.HS-PS1-7
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