
How To Balance Chemical Equations (5 Steps)
Authored by John Hazell
Biology
9th Grade
NGSS covered
Used 3+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the only element that can be changed to balance a chemical equation?
Element symbols
Atomic numbers
Coefficients
Subscripts
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is assumed when no coefficient is written in front of a chemical formula?
It's undefined
It's 2
It's 1
It's 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you balance an equation with an element that has a different number of atoms on each side?
It cannot be balanced
Add more elements
Change the coefficients
Change the subscripts
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When balancing equations, if a chemical element appears as a polyatomic ion on both sides, how should it be treated?
As a single unit
As separate ions
By balancing each atom individually
Ignoring its presence
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step in balancing a chemical equation as discussed in the video?
Counting the atoms again
Changing the subscripts
Practicing with more equations
Checking the coefficients
6.
OPEN ENDED QUESTION
5 mins • 6 pts
1. What is the Law of conservation of Matter described in the Video ?
1. What is the Law of conservation of Matter described in the Video ?
And
2. Why is it the law is so important to understand how chemical equations work ?
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Tags
NGSS.HS-PS1-7
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