Question

why decomposition reactions are called the opposite of combination reaction explain with the help of an example​

Answer 1

Answer:

decomposition reaction: one reactant decompose into two products on applying energy like heat,light,electricity.

combination reaction: two reactants combine to form one product

so decomposition reaction is opposite of combination reaction

Answer 2

Answer:

Yeah it is true ,A decomposition reaction is the opposite of a combination reaction when a single reactant decompose into 2 or more products.. this reaction is called as decomposition reaction.

for example-

 CaCO3----------> CaO + CO2