guy - 19-7-2005 at 21:33
Why does a silver ion react with a hydroxide ion to form an oxide and not a hydroxide?
I'm guessing that the formation of H2O is more favorable. And also are there any other metals that have this property?
***
Another question, kind of off topic: does the bicarbonate HCO3- ion always form the carbonate CO3-- ion double displacement rxns?
[Edited on 7/20/2005 by guy]
12AX7 - 19-7-2005 at 22:42
Mercury and probably other noble metals do, in addition to silver and copper. Anodization of copper in a strong chloride solution produces Cu2O, not
the CuOH or Cu(OH)2 you would expect (in a sulfate solution however, Cu(OH)2 is formed).
Tim
guy - 20-7-2005 at 09:25
Most copper compounds I've worked with turns to the hydroxide when OH- is added, however it turns to the oxide(I think) when you add H2O2.
12AX7 - 20-7-2005 at 10:03
Yes but have you worked with mostly cupric compounds? 
Although I'll admit I never did add OH to Cu2Cl2, it sure works with electrolysis.
Tim