1) You are given an unknown solution, which contains both aqueous barium ion, Ba2+(aq), and aqueous lead(Ii) ion, Pb2+(aq) - Which of your six solutions would allow separation of the ions? Select all that apply. A. Ammonium chloride, NH4Cl(aq) B. Cobalt(ii) nitrate, Co(NO2)2(aqq) c. Iron(iii) nitrate, Fe(NO2)2(aq) 0. Silver nitrate, AgNO2(aq) E. Sodium hydroxide, NaOH(aq) E. Sulluric acid, H2SO4(cq)