Question

What are physical and chemical changes?
Answer,
Physical changes-Physical changes are the changes in which new substances are formed.
Example- Melting of ice.
Chemical changes-chemical changes are the changes that reoult in the formation of new substances.
Example- Rusting of iron.​

Answer 1

Answer:

Physical changes-Physical changes are the changes in which new substances are formed.

Example- Melting of ice.

Chemical changes-chemical changes are the changes that reoult in the formation of new substances.

Example- Rusting of iron.

EXPLANATION:Ice melt means its change into water again water freeze means its change into ice. When it change into something and again it something into change . It is called physical change.

when a substance combines with another to form a new substance, called chemical change.