# How do transition metals react with water?

Generally, they form coordination complexes of the form ${\left[M {\left(O {H}_{2}\right)}_{6}\right]}^{2 +}$
Salts of transition metals, $M {X}_{2}$, generally dissolve in water to form coordination compexes of the form $\left[M {\left(O {H}_{2}\right)}_{6}\right] {X}_{2}$. The metal is octahedrally coordinated.