history of chemistry
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О "history of chemistry"
a history of chemistry history of chemistry 202 – group bahadirova diana early elements in 340bc aristotle proposed that all matter was made of composed of earth, wind, fire and water alchemy 1500’s – 1700’s trial and error, serendipity big claims, little returns (gold, universal solvent) discovered distillation and recrystallization 14 basic elements (didn’t know what elements were) s, hg, c, fe, pb, cu, sn, ag, au, p, as, sb, bi, zn experimental method jan baptista van helmont an element defined robert boyle (english scientist) in 1661 defined an element as: took until 1900’s to discover most elements. “certain primitive and simple or perfectly unmingled bodies, which not being made of any other bodies or of another, are the ingredients …
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