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why composition reaction is opposite of Decomposition reaction?

Posted by Archana Bhardwaj Bhardwaj 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 5 months ago

A decomposition reaction is breakdown or separation of a chemical compound into its elements or simpler compounds while in composition reactions two or more elements or compounds combine to form a single compound that is why decomposition reactions called the opposite of combination reactions.

Decomposition Reaction

CaCO₃→CaO+CO₂

NH₄OH→NH₃+H₂O

Combination Reaction

N₂+3H₂→2NH₃

CaO+H₂O→Ca(OH)₂

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CBSE > Class 10 > Science