Based on the solubility rules, which of the following will occur if solutions of CuSO4(aq) and BaCl2(aq) are mixed?
A) CuCl2 will precipitate; Ba2+ and SO42- are spectator ions.
B) CuSO4 will precipitate; Ba2+ and Cl- are spectator ions.
C) BaSO4 will precipitate; Cu2+ and Cl- are spectator ions.
D) BaCl2 will precipitate; Cu2+ and SO42- are spectator ions.
E) No precipitate will form.