Question

what is combination reaction ? explain with example.

Answer 1

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A combination reaction  is a reaction where two or more elements or compounds combine to form a single compound or product.

Example:

Formation of calcium oxide by the combination elements calcium and oxygen.
2Ca + O2 → 2CaO

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Answer 2

a reaction in which two or more reactants combine to form a single new product is called a combination reaction.
eg c2+o=co2
mg2+o=mgo
h2+o2=h2o