Question

State four conditions necessary for chemical reactions to take place.

Answer 1

Four conditions that are necessary for chemical reactions to occur are-
1. Close contact: The reactants must come into close contact for a chemical reaction to occur.

2. Heat: Some reactants need to be heated to undergo a chemical reaction.

3. Light: Some reactions take place only in the presence of light.

4. Catalyst: Some reactions need a catalyst to speed up or slow down the reaction.