Answered: For many years the recovery of… | bartleby
Science Chemistry Q&A Library For many years the recovery of gold—that is, the separation of gold from other materials—involved the use of potassium cyanide: Au + KCN + O2 + H2O à KAu(CN)2 + KOH (a) Balance the above chemical equation. (b) What is the minimum amount of potassium cyanide in grams needed to extract 29.0 g (about an ounce) of gold?
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