Question

which is a type of decomposition reaction ?

Answer 1

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. Thesereactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds.

Answer 2

2H2O -> 2h2 / O2
2HCl -> H2 + Cl2