Explanation:
The compound sodium iodide (NaI) is an ionic compound as there is formation of chemical bond by transfer of electrons from sodium to iodine.
Therefore, it is a polar molecule and we know that water is also a polar solvent. Hence, like dissolves like as a result, sodium iodide will dissociate into water.
The reaction equation will be as follows.
[tex]NaI(s) + H_{2}O \rightarrow Na^{+}(aq) + I^{-}(aq)[/tex]