

Balancing Combustion Reactions
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the products of the combustion reaction of C6H10O3?
Carbon dioxide and water
Methane and oxygen
Hydrogen and carbon monoxide
Nitrogen and water
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are present in the reactants initially?
Three
Five
Seven
Nine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it recommended to leave oxygen balancing until last in combustion reactions?
Oxygen is the most abundant element
Oxygen is a diatomic molecule
Changing oxygen affects carbon and hydrogen counts
Changing oxygen does not affect carbon and hydrogen counts
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What coefficient is placed in front of CO2 to balance carbon atoms?
7
6
5
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are balanced by placing a coefficient in front of H2O?
8
10
12
14
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of oxygen atoms needed in the products to balance the equation?
15
16
17
18
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen molecules (O2) are required to balance the equation?
6
7
8
9
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