Balancing Chemical Equations
Authored by Wayground Science
Science
9th Grade
22 Questions
Used 3+ times
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What does the Law of Conservation of Mass state?
Matter cannot be created or destroyed in a chemical reaction.
Matter can only be destroyed in a chemical reaction.
Matter can only be created in a chemical reaction.
Matter can be created and destroyed in a chemical reaction.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Is the following equation balanced?...
Al + O2 --> 2Al2O3
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the number before a chemical formula called?
Ex: 2H2 + O2 --> 2H2O
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Is the following equation balanced?
2C2H2 + 5O2 --> 4CO2 + 2H2O
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The coefficient in 3H2O is
6
5
2
3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following models best demonstrates a balanced chemical equation?
F
G
H
J
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What coefficient should be used to make the following equation balanced?
N2+O2--> __?__NO
1
2
3
4
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