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GSE Grade 8 Science - S8P1f The Law of Conservation of Mass

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Georgia Standards of Excellence

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Grade 8
Science
Georgia Standards of Excellence

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Q 1/3
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Which BEST explains why the total mass of the product(s) would be less than the total weight of the reactant(s) after a chemical reaction?
29
physical change occurred.
Precipitates were created in the new solution.
Atoms involved in the reaction lost mass.
Gases were released to the atmosphere.

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3 questions

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Q1
Which BEST explains why the total mass of the product(s) would be less than the total weight of the reactant(s) after a chemical reaction?
physical change occurred.
Precipitates were created in the new solution.
Atoms involved in the reaction lost mass.
Gases were released to the atmosphere.
60s
S8P1f
Q2
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products?
6 atoms of carbon (C)
3 atoms of carbon (C)
12 atoms of carbon (C)
2 atoms of carbon (C)
60s
S8P1f
Q3
How does a balanced chemical equation satisfy the Law of Conservation of Mass?
During a chemical reaction, matter is destroyed.
During a chemical reaction, one or more new substances are formed.
During a chemical reaction, the total number of atoms increases.
During a chemical reaction, the total amount of matter stays the same.
60s
S8P1f

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