Question

Cu → cu2 2e– this equation represents _____.

Answer 1

the answer
Cu → cu2+ + 2e– this equation represents oxydation half-reaction of Cu II

Answer 2

Step-by-step 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.