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QUESTION
17) Why is 18-karat gold considered a mixture rather than a pure substance? A) It has a variable composition. B) Its color is different than pure gold. C) The gold atoms are not arranged in a repeatin
17) Why is 18-karat gold considered a mixture rather than a pure substance? A) It has a variable composition. B) Its color is different than pure gold. C) The gold atoms are not arranged in a repeating pattern. D) It can be melted and transformed into a different substance.
