Question

what is decomposition reaction. Give two examples.

Answer 1

Those chemical reactions in which single substance split into two or more substance is called decomposition reaction.

eg :-- Caco3 --------> Cao + Co2

H2O -----------> H2 + O2...

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Answer 2

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into 2 or more elements or new compounds .

For example

1) Calcium carbonate decomposes in calcium oxides and carbon dioxide when heated .

2) When heated strongly potassium chlorate decomposes into potassium chloride and oxygen .