differences between pure substance and mixture?

1.	differences between pure substance and mixture?
Answer» Ans.\tPure Substance has the same composition and properties throughout Whereas Mixture is the combination of two or more pure substances where each substance retains its own identity.\tPure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances.\tA pure substance has constant physical and chemical properties, while mixtures have varying physical and chemical properties (i.e., boiling point and melting point).\tA pure substance is pure, while a mixture is impure.\te.g: Pure water is a pure substance. It consist of only water molecules While e.g: Alcohol-water mixture, both co-exist together.

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