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July 31, 2014

Homework Help: Chemistry

Posted by Dani on Thursday, October 20, 2011 at 11:29pm.

You observe that when copper is added to a soltion containing gold ions, the copper dissolves and the gold precipitates. Similarly, almost every other metal will displace gold from solutions of gold salts.
a) Do these observations mean that gold ion is a unusally good oxidizing agent or a poor oxidizing agent? Explain.
b) expensive units of sterio and other electronic equiptment use gold-coated parts. Is the choice of gold based strictly on its appearance; that is, do the observations support its selection based on its chemical behavior? Explain.

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