Need chemistry help with pure and impure substances

Chemistry
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distinguish between pure and impure substances;

Dec 26th, 2015

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If a substance consist only one type of particles (these particles are in consistent ratio) and it has uniform composition and properties then that substance is called pure substance examples are sugar and salt etc

If a substance consists of two or more different kinds of particles(these particles are not in consistent ratio) and it does not have uniform composition and properties then that substance is called impure substance examples are air and soil etc

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Dec 26th, 2015

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