Question

State the chemical change that occurs when limestone is heated

Answer 1

Explanation:

when limestone is heated then calcium oxide and carbon dioxide is form

Answer 2

Answer:

When limestone is heated in the presence of oxygen it forms calcium oxide and carbon dioxide

CaCO3   $\frac{Heat}{Oxygen} ->$  CaO + CO2

This type of reaction is called thermal decomposition reaction.

This type of chemical change is irreversible.