Question

What is physical and chamical change

Answer 1

Physical change is temporary and only state of matter changes during it
ex:melting of Ice
chemical change is permanent and composition of matter changes during it
ex:ripening of mango

Answer 2

Changes in which no new substances are formed are known as physical changes.Such changes might alter the physical properties of the original substance.

Changes in which new substances are formed are known as chemical changes.Such changes alter both physical and chemical properties of the original substances.