Question

What is the main difference between a chemical and a physical change? PLEASE HELP ASAP

Answer 1

physical changes only change the appearance of a substance not it's chemical composition .chemical changes change the substance with a new chemical formula

Step-by-step explanation:

Answer 2

In a chemical change the nature of the substance changes and it is transformed, for example when a piece of wood is burned, the carbon is being transformed into carbon dioxide. A physical change is one where the nature of matter does not vary.

I hpoe help you.