Polyatomics

ammonium

NH4 +

acetate

C2H3O2 -

hydroxide

OH -

nitrate

NO3 -

nitrite

NO2 -

hydrogen carbonate (bicarbonate)

HCO3 -

permanganate

MnO4 -

perchlorate

ClO4 -

chlorate

ClO3 -

chlorite

ClO2 -

hypochlorite

ClO-

sulfate

SO4 2-

sulfite

SO3 2-

carbonate

CO3 2-

chromate

CrO4 2-

dichromate

Cr2O7 2-

phosphate

PO4 3-

cyanide

CN -

hydrogen phosphate

HPO4 2-

dihydrogen phosphate

H2PO4 -

hydrogen sulfate (bisulfate)

HSO3 -

hydrogen sulfite (bisulfite)

HSO3 -

silicate

SiO3 2-

oxalate

C2O4 2-

phosphite

PO3 3-