katherinecarmaovkrcd
katherinecarmaovkrcd katherinecarmaovkrcd
  • 11-09-2017
  • Chemistry
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Contrast a mixture and a pure substance. In your answer be sure to explain what each is, how you can tell them apart, and supply an example for each.

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iz4ya999
iz4ya999 iz4ya999
  • 12-09-2017
A pure substance has a definite and constant composition. A pure substance can be either an element or a compound, but the composition of a pure substance doesn’t vary. Ex: salt or sugar

Mixtures are physical combinations of pure substances that have no definite or constant composition — the composition of a mixture varies according to who prepares the mixture. Ex: sand mixed with salt
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