Polyatomics

Bisulfate or Hydrogen Sulfate

HSO4-1

Bromate

BrO3-1

Nitrite

NO2-1

Nitrate

NO3-1

Dichromate

Cr2O7-2

Cyanide

CN-1

Chromate

CrO4-2

Sulfate

SO4-2

Ammonium

NH4+1

Bicarbonate or Hydrogen Carbonate

HCO3-1

Acetate

C2H3O2-1

Chlorite

ClO2-1

Sulfite

SO3-2

Phosphate

PO4-3

Iodate

IO3-1

Carbonate

CO3-2

Selenate

SeO4-2