Question

Diff. Between physical change and chemical change

Answer 1

In physical change new substance are formed and in chemical change no new substance are formed

Answer 2

Hey friend,
Here are some of the differences between Physical and Chemical changes - 

1. Physical change is a change in which the molecules are rearranged but       their internal composition remains same.
   Chemical change is a process in which the substance transforms into a   new substance, having different chemical composition.

2. Physical changes are mostly reversible
    Chemical changes are mostly irreversible

3. No new product is formed in Physical changes
    New products are formed in Chemical changes

4. No energy is evolved or taken in Physical changes
    Energy is evolved and absorbed in Chemical changes

Hope it helps!!!