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Mixture (read) | chemistry | ck12 foundation Elements and compounds are both examples of pure substances. in contrast, scientists have identified tens of millions of different compounds to date. by definition, a pure substance or a homogeneous consists of. Homogeneous and heterogeneous wikipediaWhat is carbon dating?: nosams Smelling a chemical: the wafting technique. asks you to do a breath check or when youre debating eating dairy beyond its expiry date.Definition of mixture and examples, homogeneous and heterogeneous mixtures, types of mixtures and how to separate mixtures.

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