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7th grade Science...
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5 votes
7th grade Science...

7th grade Science...-example-1
User Thangtn
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2 Answers

6 votes

Answer:

C

Step-by-step explanation:

CaCO3 = CaO + CO2

O = 3 O = 1 + 2 = 3

C = 1 C = 1

Ca = 1 Ca = 1

The number of atoms in each element is the same on each the reactant side and the products side.

User JeffRegan
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4.6k points
2 votes
The answer is B Because
User Pavel Vorobyov
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4.5k points
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