Question

write a
difference between physical change and chemical change​

Answer 1

Explanation:

Physical Change

Chemical Change

1. The chemical composition of a substance does not change.

1. The chemical composition of a substance changes.

2. Most changes are reversible.

2. Most changes are irreversible.

3. No new substances are formed. For example,

Ice → Water → Steam

3. New substances are formed.For example,

Paper → Ashes

Answer 2

Explanation:

Physical changes only change the appearance of a substance, not its chemical composition.

Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions....