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

May 13, 2017

$C u C {l}_{2} \left(a q\right)$
$C u O \left(s\right) + 2 H C l \left(a q\right) \rightarrow C u C {l}_{2} \left(a q\right) + 2 {H}_{2} O \left(l\right)$
In aqueous solution $C {u}^{2 +}$ exists as ${\left[C u {\left(O {H}_{2}\right)}_{6}\right]}^{2 +}$, which has a quite beautiful blue colour......