Question

what is decomposition reaction? explain with their examples​

Answer 1

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Chemical decomposition is the breakdown of a single entity into two or more fragments. Chemical decomposition is usually regarded and defined as the exact opposite of chemical synthesis.

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Answer 2

Answer:

The reaction in which a single reactant breaks down into 2 or more products is known as displacement reaction.

Example:

CaCO3---->(heat) CaO+CO2