# Question #73859

$C r \left(I I I +\right)$ typically forms a ${\left[C r {\left(N {H}_{3}\right)}_{6}\right]}^{3 +}$ complex ion, whose formation we could represent by the following equation:
$C {r}^{3 +} + 6 N {H}_{3} \left(a q\right) \rightarrow {\left[C r {\left(N {H}_{3}\right)}_{6}\right]}^{3 +}$