[Acid_Base_Reaction]

I have been working on the production of Cu(II)(OH)₂. The method I have been useing so far is the electrolysis method 2Cu(s) + 3H₂O(l) ===> 2Cu(II)(OH)₂(aq) + 2H₂(g). I have been useing a copper anode and a copper cathode in a brine solution of Na₂CO₃ all together in a big clear glass bowl hooked up to a battery of 6 or 9 volts (I ran out of 9 volts so I used a 6 instead). So far the bowl has worked well and has alowed me to watch the reaction as it hapons. One of the problems I have noted with this method is that the copper cathode creates a black byeproduct. I am not shore what this is but the amount created is miniscule compared to the copper hydroxide prodused. Any sugestions on how to improve my method of creating copper hydroxide?

Secondly, now that I have been able to produse copper hydroxide what experiments should I do with it. I have done some acid base reactions but other than that any other sugestions.

[OrganicDan96]

probably copper oxide

[Acid_Base_Reaction]

That's what I suspected. Thanks.