Identify the reactants and products in the given chemical reaction: MgSO4 and Pb(NO3)2 are the reactants, while Mg(NO3)2 and PbSO4 are the products.
Write the balanced molecular equation for the reaction: MgSO4 (aq) + Pb(NO3)2 (aq) → Mg(NO3)2 (aq) + PbSO4 (s).
Determine the states of each compound: MgSO4 and Pb(NO3)2 are aqueous, Mg(NO3)2 is aqueous, and PbSO4 is a solid precipitate.
Break down the aqueous compounds into their respective ions: MgSO4 (aq) dissociates into Mg^2+ (aq) and SO4^2- (aq); Pb(NO3)2 (aq) dissociates into Pb^2+ (aq) and 2NO3^- (aq).
Identify and cancel out the spectator ions that appear on both sides of the equation: Mg^2+ (aq) and NO3^- (aq) are spectator ions. Write the net ionic equation with the remaining ions: Pb^2+ (aq) + SO4^2- (aq) → PbSO4 (s).