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How can I compare and contrast mixtures and pure substances?

Answer

Matter can be classified as either a pure substance or a mixture. When you compare the two, a mixture can be homogeneous and a pure substance is always homogeneous. A mixture can also be heterogeneous. In contrast to each other, a mixture is the combining of two or more substances which can be separated while pure substances cannot be physically separated. There are two types of pure substances, elements and compounds but commonly a pure substance is an element.
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