Question

Define Physical and chemical change.​

Answer 1

Answer:

physical change are those change in which only the state of matter change and no new substance is formed

chemical change are those change in which the new compound is formed which have different properties

Answer 2

Answer:

Physical change-

Changes which are reversible and there is only change in shape,size,state and smell if object are physical change.

Ex - burning of water

Chemical Change-

Changes which are irreversible and there is change in chemical property of substance are called chemical change.

Ex - cutting of wood.