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However, if exposed to air....
is CuO amphoteric ? i see some covalent oxides such as BeO , Al2O3 and ZnO are amphoteric and they react with acid to give metal ions and water but i don't know if CuO behaves the samethe reaction is like BeO + 2H+ > Be2+ + H2Oby the way , i m from Hong Kong too , are u A Level student ?
Quote from: Albert on April 14, 2006, 08:20:02 AMHowever, if exposed to air....um... Thanks first but "exposed to air" means we need to pump air into the acid or just place it under normal conditions...?normally there is oxygen in the solution, so will there be any reactions ?
btw, can we say that the CuO is basic, and thus neutralization occurs?because a book tells me that the metals will increase the properties of being a base across the periodic tabe (from right to left) if become oxidesis that true?
how about the mechanism ? does the negative O oxide ion attack the H on H2O to give OH- ?
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