
Balancing Chemical Equations

Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Hard

Ethan Morris
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial number of oxygen atoms on the reactant side before balancing?
One
Two
Three
Four
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many lead atoms are there on the product side initially?
Two
One
Four
Three
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What coefficient is used for PbO to balance the lead atoms?
Two
Five
Three
Four
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After balancing lead atoms, how many oxygen atoms are there on the reactant side?
Five
Four
Six
Seven
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the strategy used to balance the oxygen atoms?
Add more oxygen molecules
Reduce the number of lead atoms
Double the coefficients
Use a catalyst
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final number of oxygen atoms on the product side after balancing?
Eight
Seven
Six
Nine
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key tip mentioned for balancing equations?
Use a calculator
Leave oxygen till last
Balance oxygen first
Start with hydrogen
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final balanced equation for PbO and O2?
2PbO + O2 → PbO2
2PbO + O2 → 2PbO2
4PbO + O2 → 2PbO2
6PbO + O2 → 3PbO2
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