Question

Describe pure substances.​

Answer 1

Answer:

A substance that has a fixed chemical composition throughout is called a pure substance

such as water, air, and nitrogen.

A pure substance does not have to be of a single element or compound. A mixture of two

or more phases of a pure substance is still a pure substance as long as the chemical

composition of all phases is the same.

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Answer 2

Answer:

Any material that is not a mixture,,,,is known as pure substance

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