Question

Difference between chemical change and physical change .

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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.

Answer 2

Explanation:

Physical change

• The physical properties of the substance change.
• Mostly reversible changes.
• A new substance is not formed.

Chemical changes

• The chemical properties of the substance change.
• All are irreversible changes.
• A new substance is formed.