Question

write the difference between combination and decomposition reaction​

Answer 1

Answer:

 The reaction in which two or more elements or reactants react together to form a single product with entirely different properties is called combination reaction. Decomposition reaction:-Thereaction in which single element breaks down to give two or more products is called decomposition reaction.

Explanation:

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Answer 2

The combination reaction may be defined as a chemical reaction in which two or more substances combine to form a single substance under suitable conditions.

eg Coal burns in air to form carbon dioxide gas.

C (s) + O2 (g) _____ CO2 (g)

The decomposition reaction is the opposite of a combination reaction. During decomposition reaction, a complex compound breaks down into multiple simpler compounds.

eg Copper Carbonate breaks down easily when it is heated to form copper oxide and carbon dioxide ,

Copper Carbonate _______ Copper oxide+ carbon dioxide

CuCo3 ____heat___CuO +CO2