Question

difference between physical change and chemical change?

ANS:- physical change:-
physical change is a temporary change. physical change is a reversible change.
physical change is a slow example: growing of trees,bending of books etc.
chemical change:-
chemical change is a permanent change. chemical change is a ereversible change. chemical change is a fast. example:- burning of paper , digestion of food etc.
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Answer 1

• 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.

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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.

Explanation:

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