Question

Define physical change and chemial change​

Answer 1

Physical change is a change in which no new substances are formed and it is reversible.

Chemical change is a change in which new products or substances are formed and it is irreversible.

Answer 2

physical change -the changes in which there is alternations in physical properties,but no new substance is formed are called physical changes.

chemical changes- the changes in which no new substance is formed. hope it will help ☺️