Question

mention 3 difference between physical and chemical change​

Answer 1

Answer:

physical change:1. temporary and easily reversible. 2. No new Substance is formed. 3. No change in mass.

chemical change:1. permanent and sometimes reversible . 2. New Substance is formed. 3. The weight of Substance is altered

Answer 2

Hello ,

Here are the differences between Physical and Chemical change :-

Physical Change -

1. It is a temporary change .
2. No new substance formed with new properties.
3. It can be reversed by simple physical methods .

    4.Energy is neither needed nor produced .

Chemical Change -

1. It is a permanent change .
2. New substance formed with new properties .
3. It can't be reversed by simple physical methods .

    4.Energy is either needed or produced .

I hope my answer will be helpful !!!