3 years ago

Calcium carbonate can break down to form calcium oxide and carbon dioxide.

Chemistry

2 answers:

Vadim26 [7]3 years ago

6 0

<h2><u><em>Answer: balanced because the total number of oxygen atoms is 3.</em></u></h2>

Explanation:

DerKrebs [107]3 years ago

4 0

Answer:

The answer to your question is the third choice.

Explanation:

CaCO₃ ⇒ CaO + CO₂

Check if the reaction is balanced or unbalanced

Reactants Elements Products

1 Calcium 1

1 Carbon 1

3 Oxygen 3

As the number of atoms in the reactant is the same that the number of atoms in the products we conclude that the reaction is balanced.

So the correct answer is balanced because the total number of oxygen atoms is 3.

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