Balancing Equations
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by Gregory Sukowaty
| 10 Questions
Objectives: Students will be able to explain the conservation of mass and demonstrate the process of balancing a chemical equation.
Standards:
HS.PS1.7- Use mathematical representations to support the claim, that atoms, and therefore mass, are conserved during a chemical reaction.
HS.Crosscutting.Energy- The total amount of energy in a closed system is conserved in a chemical reaction.
Functionalized Placeholder
1
2
3
4
5
6
7
8
1
1
From left to right:
Select the number set that will balance the equation.
1-5-3-4
2-3-4-2
1-6-4-4
1-3-3-5
2
1
The product from this reaction is Sodium Chloride.
True
False
3
1
Show, step by step, how to balance this equation.
4
1
From left to right:
Select the number set that will balance the equation.
4-2-1
2-5-4
8-10-2
8-16-1
5
1
What kind of reaction is this?

6
1
From left to right:
Select the number set that will balance the equation.
4-7-1-9
2-7-1-6
4-2-2-8
2-7-1-9
7
1
From left to right:
Select the number set that will balance the equation.
2-1-1-2
3-2-2-3
2-1-2-4
2-2-1-4
8
1
From left to right:
Select the number set that will balance the equation.
3-2-1-1
1-1-2-3
3-3-1-1
2-2-1-1
9
1
Write in your own words what is meant by conservation of mass.

10
1
Explain the steps you take to balance a chemical equation

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