A sample of copper powder is heated in an evaporating dish using a Bunsen burner. If the mass of the powder in the evaporating dish increases after heating, this indicates that A. the copper must have combined with another substance. B. the copper must have lost matter. C. hot copper is more dense than cold copper. D. hot copper weighs more than cold copper.
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Home » Chemistry » A sample of copper powder is heated in an evaporating dish using a Bunsen burner. If the mass of the powder in the evaporating dish increases after heating, this indicates that A. the copper must have combined with another substance. B.