Which property distinguishes a pure substance from a mixture? A pure substance is while a mixture is A. always heterogeneous; sometimes homogeneous or heterogeneous B. made up of two or more kinds of matter; made up of only one kind of matter C. with varying boiling and melting point; with definite boiling and melting point D. with definite composition and properties; with varied composition and properties Mhat is the formula of the
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A. always heterogeneous; sometimes homogeneous or heterogeneous