Question

Define physical and chemical change give example​

Answer 1

Answer:

Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances.

EXAMPLE :

Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc. Generally, physical chan

Answer 2

Answer:

change occurs when object or substance undergo change their chemical composition.

chemical change in which the composition of a substance changes or one or more substance combined or break up to form New substance.