Cu → cu2 2e– this equation represents _____.
the answer
Cu → cu2+ + 2e– this equation represents oxydation half-reaction of Cu II
Explanation:
In a reduction-half reaction, there is gain of electrons.
For example, \(Ag^{+} + 1e^{-} \rightarrow Ag\)
Whereas in an oxidation-half reaction, there is loss of electrons.
For example, \(Cu \rightarrow Cu^{2+} + 2e^{-}\)
Thus, we can conclude that the equation Cu → cu2 2e– represents oxidation-half reaction.