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6 August, 12:53

Which of the following best describes the difference between a mixture and a pure substance?

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  1. 6 August, 12:54
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    Pure substance has a definite and constant composition-like salt or sugar. A pure substance can be either an element or a compound, but the composition of a pure substance doesn’t vary.

    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.
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