The decomposition reaction as the name indicates is such a chemical reaction that involves the breaking down of the reactant molecule in two or more two products.
A decomposition reaction can be represented as:
AB → A + B
This shows that AB is the reactant, parent molecule which tends to break down into two products i.e., A and B. It is not compulsory that all the decomposition reactions absorb energy in order to proceed. The decomposition reactions are of both types i.e., endothermic and exothermic.
Examples of Decomposition Reaction:
The breakdown of water in its constituents H2 and O2, decomposition of NO into N2 and O2, etc. are examples of decomposition reactions.
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