Explanation:
A dissociation reaction is defined as a reaction in which a compound dissociates into its constituent particles.
For example, \(MgBr_{2} \rightarrow Mg^{2+} + 2Br^{-}\)
For a neutral compound, it is required that the charges must be balanced between the combining atoms.
Here, \(MgBr_{2}\) is the neutral compound as charge +2 on one atom of magnesium is balanced by 2 atoms of \(Br^{-}\) ion.
Therefore, we can conclude that in total the number of ions produced in the dissociation of \(MgBr_{2}\) compound is 3.
