different between pure subtance and mixture (2point)
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the chemical properties of a pure substance remains uniform throughout the bulk while in mixture it always differs
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Pure Substance
•) A pure substance have a definite composition and a definite set of properties such as boiling points, melting point density, etc.
•) They are all homogeneous i.e their composition is uniform throughout the bulk.
Mixture
•) A mixture is an impure substance. It has no fixed composition i.e it is formed by mixing two or more substance in any ratio without any chemical reaction.
•) They maybe homogeneous or heterogeneous.
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