A substance can be pure:

when a substance has unique properties through which it can be distinguished

when a substance has common properties through which it can be identified

when a substance can be separated into two different groups of material

when a substance can be broken down into basic parts

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15 June, 11:52

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Alexandria Barr · Answer 1

In my opinion, a substance can be pure if it has unique properties through which it can be distinguished

A substance can be pure:when a substance has unique properties through which it can be distinguishedwhen a substance has common properties through which it can be identifiedwhen a substance can be separated into two different groups of materialwhen a substance can be broken down into basic parts