question_answer 19)

Why are decomposition reactions called the Opposite of combination reactions? Write equations for these reactions. 

Answer:

The decomposition reactions are those in which a compound breaks up into two or more simpler substances. On the other hand, combination reactions are those in which two or more substances combine to form single substance.            Thus, the decomposition reactions are opposite of the combination reactions.   For example, decomposition reactions are :        For example, combination reactions are :