Question

Write combination reaction and decomposition reaction with one example each.

Answer 1

A combination reaction is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product).

$Ba+F_2⟶{BaF}_2$

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

$CaC{O}_3\stackrel{△}{\to }CaO+{CO}_2$