Question

How are physical changes different from chemical changes?

Answer 1

Answer:

see below

Explanation:

1) physical changes reversible but chemical changes are irrerersible

2) physical changes : shape, size,

volume, state etc are altered

but chemical changes alter the composition in atomic level

3) physical change do not give new substance but chemical change gives a new substance

Ex : physical change : Boling of water

chemical change : burning of coal