Question

why are decompostion reactions called the opposite of combination reaction? write equations fore these reactions.

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:

decomposition reaction is reaction in which compound break into substance

and combination reaction is a reaction in which two substance mix to form a compound