Polyatomics & Common Name Species

ammonium

NH4^+

hydronium

H3O^+

carbonate

CO3^2-

hydrogen carbonate or bicarbonate

HCO3^-

acetate

CH3COO^- or C2H3O2^-

chromate

CrO4^2-

dichromate

Cr2O7^2-

azide

N3^-

oxalate

C2O4^2-

hypobromite

BrO^-

peroxide

O2^2-

bromite

BrO2^-

sulfite

SO3^2-

bromate

BrO3^-

sulfate

SO4^2-

perbromate

BrO4^-

hydrogen sulfate or bisulfate

HSO4^-

hypochlorite

ClO^-

thiosulfate

S2O3^2-

chlorite

ClO2^-

chlorate

ClO3^-

borate

BO3^3-

perchlorate

ClO4^-

phosphite

PO3^3-

cyanide

CN^-

phosphate

PO4^3-

cyanate

OCN^-

hydrogen phosphate

HPO4^2-

fulminate

CNO^-

dihydrogen phosphate

H2PO4^-

hydroxide

OH^-

pyrophosphate

P2O7^4-

hypoiodite

IO^-

iodite

IO2^-

iodate

IO3^-

ammonia

NH3

periodate

IO4^-

nitric oxide

NO

nitrite

NO2^-

nitrous oxide

N2O

nitrate

NO3^-

ozone

O3

permanganate

MnO4^-

water

H2O

thiocyanate

SCN^-

methane

CH4

ethane

C2H6

propane

C3H8

butane

C4H10

benzene

C6H6