Question

Answer in one word/ a few words.

A reaction in which a compound splits into two or more simpler substances. __________

Answer 1

• Decomposition reaction- A reaction in which a compound splits into two or more simpler substances is known as a decomposition reaction.
• Example- When calcium carbonate is heated, it splits into calcium oxide and carbon dioxide.

$\underset{\mathrm{Calcium}\mathrm{carbonate}}{{\mathrm{CaCO}}_3\left(\mathrm{s}\right)}\stackrel{\mathrm{Heat}}{\to }\underset{\mathrm{Calcium}\mathrm{oxide}}{\mathrm{CaO}\left(\mathrm{s}\right)}+\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}$