Find number abc
If 7cb06 + 69ac0 = 1a29c6 find number abc. Multiple solutions may exist.Correct answers: 1
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BoronIn 1808, Humphry Davy announced in a paper read to the Royal Scociety that he had separated the element boron. Davy had taken boric acid with potassium in a copper tube and heated it to dull redness for fifteen minutes. The resulting olive-gray powder did not effervesce with water or acids, indicating that the potassium had disappeared. However, working independently, French chemist, Joseph Louis Gay-Lussac had announced the same accomplishment nine days earlier, on 21 Jun 1808.«* |