Question

2.(a) Define chemical reaction.
(b) State necessary conditions for a chemical reaction to take place.​

Answer 1

Answer:

A)-a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

B)-Conditions necessary for chemical reactions : 1. Close contact

2. Solution form

3. Heat

4. Light

5. Catalyst