Question

3. Elements and compounds do not always react chemically. Give reason​

Answer 1

Not all elements react with each other, and in case they react, they will need a condition favouring such reaction. If the conditions are favourable for the elements to undergo a chemical reaction, they will form compounds. And, mixtures are formed when the conditions are not suitable for the reactions to take place.

Answer 2

Answer:

Elements and compounds do not always react chemically. Give reason

Explanation:

A compound is only formed when two or more elements will chemically react with each other on mixing them together. In case the conditions to undergo a chemical reaction are not suitable, the elements will mix with each other to form a mixture.