Question

chemical equation of thermal decomposition of calcium carbonate when water is added to it​

Answer 1

Answer:

CaCO3 (s) ---> CaO (s) + CO2 (g) All metal carbonates decompose to give the metal oxide and carbon dioxide. As calcium ions has a 2+ charge, the formula of calcium carbonate will Be CaCO3 (as carbonate is a 2- ion

Answer 2

Answer:

CaCO³+H²O—> Ca(OH)²+CO²

Ca(OH)²—> CaO+ H²O (on heating)