
Balancing Combustion Reactions
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Olivia Brooks
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in balancing the equation for C5H8 + O2?
Count the number of carbon and hydrogen atoms.
Add coefficients to water.
Count the number of oxygen atoms.
Balance the oxygen atoms first.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many carbon atoms are present on the reactant side of the equation?
Three
Two
Eight
Five
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What coefficient is placed in front of CO2 to balance the carbon atoms?
5
6
4
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After balancing carbon, what is the total number of oxygen atoms on the product side?
12
13
11
10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What coefficient is used in front of H2O to balance the hydrogen atoms?
5
4
3
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many total oxygen atoms are needed on the reactant side after balancing hydrogen?
15
14
13
12
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final coefficient for O2 to balance the equation?
8
6
5
7
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a good strategy for balancing combustion reactions?
Use trial and error.
Balance oxygen first.
Balance carbon and hydrogen first, then oxygen.
Start with the smallest molecule.
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