Cyanide

CN^- 

Thiocyanate

SCN^-

Hydroxide

OH^-

Nitrate

NO₃^-

Nitrite 

NO₂^-

Acetate

CH₃COO^-

or

C₂H₃O₂^-

Permanganate

MnO₄^-

Perchlorate

ClO₄^-

Chlorate

ClO₃^-

Chlorite

ClO₂^-

Hypochlorate

ClO^-

Perbromate

BrO4^-

Bromate

BrO₃^-

Bromite

BrO₂^-

Hypobromite

BrO^-

Bromide

Br^-

Periodate

IO₄^-

Iodate

IO₃^-

Iodite

IO₂^-

Hypoiodite

IO^-

Iodide

I^-

Hydrogencarbonate

or

Bicarbonate

HCO₃^-

Hydrogensulfate

or 

Bisulfate

HSO₄^-

Carbonate

CO₃^2-

Oxalate

C₂O₄^2-

Sulfate

SO₄^2-

Thiosulfate

S₂O₃^2-

Sulfite

SO₃^2-

Phthalate

C₈H₄O₄^2-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Peroxide

O₂^2-

Phosphate

PO₄^3-

Phosphite

PO₃^3-

Arsenate

AsO₄^3-

Ammonium

NH₄⁺

Hydronium

H₃O⁺

Mercury(I)

Hg₂²⁺