Question

Why are decomposition reactions called the opposite of combination reactions? Explain by giving one example (with equation) of each type of reaction.

Answer 1

Answer:

decomposition reaction are called as opposite of combination reaction because in combination reaction two or more substances combine to form a more product not in decomposition reaction a single substance breaks down into two or more simpler substances.

for e.g. combination reaction •••√√√√•

C + O2.------> CO2

But in a decomposition reaction

H2O ---- ELECTRICITY-----> H2 + O2.