Question

Perform an activity to show decomposition reaction of calcium carbonate.

Answer 1

Calcium carbonate is strongly heated until it undergoes thermal decomposition .Calcium carbonate is lime stone. When  lime stone is heated it releases carbon dioxide leaving behind calcium oxide (quick lime) into the solution . The reaction is given as follows: CaCO​3 --heat--> CaO  + CO2  .

Answer 2

When lime stone is heated, it releases carbon dioxide leaving carbon oxide behind. 

CaCO3 → Cao+ CO2