prechlorate, nitrate, acetate, group I and NH4+ always soluble
CL, Br, I always soluble unless with Hg Pb or Ag
sulfate ( SO4 ) always slouble unless Ba, Ca, Sr, Pb.
NOW INSOLUBLE
metal oxides insoluble excpet with Ba, Ca, Sr.
HYDROXIDES insoluble except with Ba, Ca, Sr.
carbonate, sulfite, phosphate, sulfide, insoluble except those NH4+ and group I.