Question

. How are physical changes
different from chemical
changes?​

Answer 1

Answer:

physical changes are different from chemical changes because a new product is formed after a chemical change while no new product is formed after a physical change.

for example- a chemical change takes place when a paper is burnt and a new product is formed called ash.

but

when a physical change takes place like tearing of paper, no new product is formed

Answer 2

Explanation:

physical change :- It is reversible change . ex. salt in water . No New substance is formed .

chemical change :- it is irreversible change . ex . burning of paper . New substance is formed