| Term | Definition |
|
alkali metal ion compounds |
soluble |
|
NH4^1+ (ammonium) |
soluble |
|
C2H3O2^1- (acetates) |
soluble (exception: AgC2H3O2 is moderately soluble.) |
|
NO3^1- (nitrates) |
soluble |
|
HCO3^1- (bicarbonates) |
soluble |
|
ClO3^1- (chlorates) |
soluble |
|
ClO4^1- (perchlorates) |
soluble |
|
halides |
soluble (exceptions: of Ag^1+, Hg2^2+, Pb^2+) |
|
SO4^2- (sulphates) |
soluble (exceptions: of Ag^1+. Ca^2+. Sr^2+. Ba^2+, Hg2^2+, Hg^2+, Pb^2+) |
|
CO3^2- (carbonates) |
insoluble (exception: with alkali metals or NH4^1+ [ammonium]) |
|
CrO4^2- (chromates) |
insoluble (exception: with alkali metals or NH4^1+ [ammonium]) |
|
F- (fluorides) |
insoluble (exception: with alkali metals or NH4^1+ [ammonium]) |
|
PO4^3- (phosphates)soluble (exception: with alkali metals or NH4^1+ [ammonium]) |
insoluble (exception: with alkali metals or NH4^1+ [ammonium]) |
|
SO3^2- (sulphites) |
insoluble (exception: with alkali metals or NH4^1+ [ammonium]) |
|
S^2- (sulphides) |
insoluble (exception: with alkali metals, NH4^1+ [ammonium], Ca^2+, Sr^2+, Ba^2+) |
|
O^2- (oxides) |
insoluble (exception: alkali metals, NH4^1+ [ammonium], Ca^2+, Sr^2+ or Ba^2+ will react with water) |
|
OH- (hydroxides) |
insoluble (exceptions: with alkali metal ions or Ba^2+; Sr(OH)2 and Ca(OH)2 are moderately soluble) |