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24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. 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.
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Social Studies, 22.06.2019 18:00
How did the nazis lead germany to war in europe and, with their collaborators, kill millions—including systematically murdering six million jewish people?
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What group of southers were not pardoned by lincoln...
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