Question

Distinguish between the following

Combination reaction and Decomposition reaction​

Answer 1

Direct combination: “Is a reaction in which two elements or compound combine to give one new compound.” Decomposition reaction: “A chemical compound (breaks up) decomposes into two or more simpler substances.”

Answer 2

Answer:

A combination reaction is a reaction in which two elements or compounds combine to form one new compound

A decomposition reaction is a reaction in which a chemical compound breaks down or decomposes to form two or more compounds or substances.

Explanation:

1. Combination reaction

• Two or more reactants are combined to form one compound
• A + B → AB

eg: C + O₂ → CO₂

    2. Decomposition reaction

• One reaction is broken down into two or more products
• AB → A + B

eg: H₂CO₃ → H₂O + CO₂