| Term | Definition |
| +1 singles + ammonium (sol) | Na+, K+, NH4+ |
| -1 trates (sol) | NO3-, ClO3-, ClO4-, CH3COO- (acetate) |
| -1 halides (+exceptions) (w/o F) (sol) | Cl-, Br-, I- (except Ag+,Hg2 2+, Pb 2+) |
| -1 fluorides (+exceptions) (sol) | F- (except Mg 2+, Ca 2+, Ba 2+, Pb 2+) |
| 2- sulfates (sol) | SO4 2- (except Ca 2+, Sr 2+, Ba 2+, Pb 2+) |
| ates (exc) (insol) | CO3 2- (carbonate), PO4 3- (phosphate), C2O4 2- (oxalate), CrO4 2- (chromate) (except NH4 + Alkali) |
| sulfides (insol) | S 2- |
| metal hydroxides and oxides (except) (insol) | Ba (OH)2 is soluble |
| strong acids (single) | HCl HBr, HI |
| strong acids (combos) | HNO3 (nitic) HClO4 (perchloric) H2So4 (sulfuric) |
| strong bases (single) | LiOH, NaOH, KOH |