The representation of a chemical reaction in the form of substances is known as a chemical equation. The equation in which the number of atoms of all the molecules is equal on both sides of the equation is known as a balanced chemical equation.
Given equation is Ca(OH)2+CO2 → CaCO3 + H2O
The equation is balanced.
Insoluble milky calcium carbonate of white precipitate and water is formed when calcium hydroxide reacts with carbon dioxide gas. The reaction follows a double displacement reaction.