Answer
$NaBr \Rightarrow Na^{+} + Br^{-}$
$MgCl_2 \Rightarrow Mg^{2+} + 2Cl^{-}$
$Al(NO_3)_3 \Rightarrow Al^{3-}+3NO_3^{-}$
$(NH_4)_2SO_4 \Rightarrow 2NH_4^+ + SO_4^{2-}$
$NaOH \Rightarrow Na^+ + OH^-$
$FeSO_4 \Rightarrow Fe^{2+}+SO_4^{2-}$
$KMnO_4 \Rightarrow K^+ + MnO_4^-$
$HClO_4 \Rightarrow H^++ClO_4^-$
$NH_4C_2H_3O_2\Rightarrow NH_4^+ + C_2H_3O_3^-$
Work Step by Step
In each example, an ionic substance breaks up into its ions as all of them are strong electrolytes. Strong electrolytes are substances that completely dissolve and dissociates in water.
