Question

What are physical and chemical change?

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Answer 1

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Physical Changes:

The Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.

Chemical Changes:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

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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.

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