Question

CaCO\(_3\)(s) → CaO(s) + CO\(_2\)(g) is what type of reaction?

• A. Decomposition
• B. Combination
• C. Displacement
• D. Double displacement

Hint:

Decomposition reactions often require heat, light, or electricity.

Answer 1

The Correct Option is A

A decomposition reaction occurs when a single compound breaks down into two or more simpler substances. Calcium carbonate decomposes into calcium oxide and carbon dioxide when heated. Thus, the correct answer is \( \mathbf{(A) Decomposition} \).