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Classify a sample of matter as a pure substance or mixture based on the number of elements or compounds in the sample.
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Classify a sample of matter as a pure substance or mixture based on the number of elements or compounds in the sample.

User Michaelliu
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1 Answer

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24 votes

A pure substance has constant chemical composition and properties.

The element cannot be separated into simples substances.

A mixture is composed of 2 or more pure substances that retain their individual identities but cannot be separated by physical methods.

User Venkatachalam
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