A student in a chemistry laboratory mixes equal volumes of two aqueous solutions: \(50.0\text{ mL}\) of \(0.10\text{ M } \text{Ba(OH)}_2\text{(aq)}\) and \(50.0\text{ mL}\) of \(0.10\text{ M } \text{H}_2\text{SO}_4\text{(aq)}\). A white precipitate forms immediately upon mixing. Which of the following best predicts the spectator ions present in the reaction and the electrical conductivity of the resulting mixture relative to the initial solutions?