Question

defination of chemical change and physical change​

Answer 1

Answer:

Chemical change- A change in which we cannot get the product back

Explanation:

Physical change-A change in which we can get the original product

Answer 2

Explanation:

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.