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Which statement about pure substances and molecules is correct?
O All pure substances are molecules.
O All molecules are pure substances.
o Molecules cannot be pure substances.
O Pure substances cannot be molecules.

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pstnonsonjoku

A molecule must be a pure substance hence the correct answer is " All molecules are pure substances."

A pure substance is one which contains only one element or compound. A molecule is the smallest unit of a compound that can exist independently.

When we refer to a molecule of a compound, we are referring to that pure substance that contains only the element(s) that compose the compound.

Hence; All molecules are pure substances.

Learn more: https://brainly.com/question/19922822

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