Polyatomic Ions

hydronium

hydronium

H3O^+

mercury (I)

Hg2^+2

ammonium

NH4^+

acetate

CH3COO^-

hydrogen carbonate

HCO3^-

permanganate

MnO4^-

nitrite

NO2^-

nitrate

NO3^-

peroxide

O2^-2

phosphate

PO4^-3

sulfate

SO4^-2

hydroxide

OH^-

cyanide

CN^-

chlorite

ClO2^-

chlorate

ClO3^-

dichromate

Cr2O7^-2

perchlorate

ClO4^-

chromate

CrO4^-2

hypochlorite

ClO^-

carbonate

CO3^-2

oxalate

C2O4^-2

hydrogen sulfate

HSO4^-

thiocyanate

SCN^-

sulfite

SO3^-2

thiosulfate

S2O3^-2