Question

Difference between chemical and physical changes.

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. Chemical changes are also known as chemical reactions.

Explanation:

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Answer 2

Answer:

physical change are reversible . they change substance shape , size, colour only it's physical property.

chemical changes are not reversible. they change substance chemical property.