Question

Which salt is produced when copper oxide reacts with hydrochloric acid?

Answer 1

`CuCl_2(aq)`

Explanation:

And the reaction........

`CuO(s) + 2HCl(aq) rarr CuCl_2(aq) + 2H_2O(l)`

In aqueous solution `Cu^(2+)` exists as `[Cu(OH_2)_6]^(2+)`, which has a quite beautiful blue colour......