The metals gold, silver, copper, lead, iron, and tin were all known before the rise of alchemy. Superficially, the chemistry involved in alchemy appears a hopelessly complicated succession of heatings of multiple mixtures of obscurely named materials, but it seems likely that a relative simplicity underlies this complexity. © American Chemical Society ( A Britannica Publishing Partner) See all videos for this article Learn why and how alchemists attempted to conceal their chemical knowledge.
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