| Term | Definition |
| soluble | anything w/ alkali metal ions (Li +, Na +, K+, Rb +, Cs +) |
| soluble | anything w/ ammonium (NH4 +) |
| soluble | anything w/ nitrate (NO3 -) |
| soluble | anything w/ acetate (C2H3O2 -) (except Ag + or Hg 2+) |
| not soluble | AgC2H3O2 |
| not soluble | Hg(C2H3O2)2 |
| soluble | anything w/ Cl - (except Ag+, Pb 2+, or Hg2 2+) |
| not soluble | AgCl |
| not soluble | PbCl2 |
| not soluble | HgCl2 |
| soluble | anything w/ Br - (except Ag+, Pb 2+, or Hg2 2+) |
| not soluble | AgBr |
| not soluble | PbBr2 |
| not soluble | HgBr2 |
| soluble | anything w/ I - (except Ag+, Pb 2+, or Hg2 2+) |
| not soluble | AgI |
| not soluble | PbI2 |
| not soluble | HgI2 |
| soluble | anything w/ F - (except Ca 2+, Sr 2+, Ba 2+, Pb 2+, Mg 2+) |
| not soluble | CaF2 |
| not soluble | SrF2 |
| not soluble | BaF2 |
| not soluble | PbF2 |
| not soluble | MgF2 |
| soluble | anything w/ SO4 2- (except Ca 2+, Sr 2+, Ba 2+, Ag +, Pb +, Hg 2+, Hg2 2+) |
| not soluble | CaSO4 |
| not soluble | SrSO4 |
| not soluble | BaSO4 |
| not soluble | Ag2SO4 |
| not soluble | Pb2SO4 |
| not soluble | HgSO4 |
| not soluble | Hg2SO4 |
| not soluble | anything w/ OH - (except alkali metals and NH4 +) |
| not soluble | anything w/ O2 - (except alkali metals and NH4 +) |
| not soluble | anything w/ PO4 3- (except alkali metals and NH4 +) |
| not soluble | anything w/ CO3 2- (except alkali metals and NH4 +) |
| not soluble | anything w/ SO3 2- (except alkali metals and NH4 +) |
| not soluble | anything w/ CrO4 2- (except alkali metals and NH4 +) |
| not soluble | anything w/ C2O4 2- (except alkali metals and NH4 +) |
| not soluble | anything w/ S2 - (except alkali metals and NH4 +) |