Question

give three points of difference between chemical change and physical change ​

Answer 1

Answer:

sorry I am busy I will tell you afterwards

Answer 2

Answer:

physical change

1) No new substance is formed. The substance may change its appearance or physical state.

2) Some physical changes are reversible and their mass does not change.

3) It is not reversible in some cases such as, tearing of paper and melting of wax.

chemical change

1) New substance with different properties is formed.

2) In general, are not reversible except by further chemical reaction.

3) it is reversible in some cases such as, freezing of water.