Question

(ii) Why decomposition reaction are called the opposite of combination reaction? Write equation for these reactions.
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Answer 1

Answer:

In a combination reaction two or more substances are combined to form new substance while in the decomposition reaction one substance decomposes into two or more substances. Hence, the decomposition reactions are called opposite of combination reactions.

Answer 2

Answer:

In a combination reaction two or more substances are combined to form new substance .

while in the decomposition reaction one substance decomposes into two or more substances.

Hence, the decomposition reactions are called opposite of combination reactions