Question

1) Physical change
a) Chemical change


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Answer 1

Answer:

physical change are those changes that are reversible. example melting of ice.

Chemical changes are those changes that are irreversible. example burning of a paper

Explanation:

Answer 2

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.