Question

what is physical and chemical change​

Answer 1

$\huge{ \red{ \boxed{ \sf{Physical \: Changes:}}}}$

• Physical Changes are those changes in which molecular composition of substance is not changing chemically but a new substance is formed.

• Example: melting of wax.

$\huge{ \red{ \boxed{ \sf{Chemical \: Changes:}}}}$

• Chemical changes are those in which molecular composition of changed chemically like dissolving salt in water.

• Example: boiling an egg.