What is the first step in balancing a chemical equation?

Balancing Chemical Equations Concepts

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

Emma Peterson
FREE Resource
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ignore the oxygen atoms
Change the chemical formulas
Count the atoms on each side
Add coefficients randomly
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many oxygen atoms are there on the reactant side before balancing?
Four
Five
Seven
Six
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which element has only one atom on both sides of the equation?
Hydrogen
Sulfur
Calcium
Carbon
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total number of oxygen atoms on the product side?
Five
Six
Seven
Eight
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common mistake when balancing oxygen atoms?
Ignoring sulfur atoms
Adding extra hydrogen atoms
Changing the chemical formulas
Forgetting to count all oxygen atoms
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the balanced chemical equation for the given reaction?
H2SO4 + CaCO3 → CaSO4 + H2O + O2
H2SO4 + CaCO3 → CaSO4 + H2O + CO2
H2SO4 + CaCO3 → CaSO4 + H2O + C
H2SO4 + CaCO3 → CaSO4 + H2 + CO2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who is the narrator of the video?
Dr. B
Dr. D
Dr. C
Dr. A
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