Question

what is the difference between physical and chemical change? ​

Answer 1

Answer:

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.

Answer 2

Answer:

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.