Why is the melting point of a substance actually a melting

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Why is the "melting point" of a substance actually a "melting range" and therefore should never be recorded as a single temperature and in theory, does a melting "point" exist? explain your answer. also briefly describe how a mixture of sand and benzoic acid, which is soluble in hot water, might be separeted to provide pure benzoic acid.

Reference no: EM13644997

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