# Is the dissolution of sodium chloride in water an example of chemical change?

$N a C l \left(s\right) \stackrel{{H}_{2} O}{\rightarrow} N {a}^{+} + C {l}^{-}$
$N {a}^{+}$ and $C {l}^{-}$ are present in solution as their aquated ions, i.e. ${\left[N a {\left(O {H}_{2}\right)}_{6}\right]}^{+}$ and ${\left[C l {\left({H}_{2} O\right)}_{4 - 6}\right]}^{-}$ (of course, the water ligands are quite labile). Because this ionization clearly involves the formation of new substances, and the making and breaking of strong chemical bonds, this is a CLEAR example of $\text{chemical change.}$