ammonium
NH₄⁺
hydronium
H₃O⁺
mercury (I)
Hg₂²⁺
acetate
C₂H₃O₂⁻ (CH3COO-)
azide
N₃⁻
carbonate
CO₃²⁻
chlorate
ClO₃⁻
chromate
CrO₄²⁻
cyanide
CN⁻
dichromate
Cr₂O₇²⁻
dihydrogen phosphate
H₂PO₄⁻
hydrogen carbonate (bicarbonate)
HCO₃⁻
hydrogen phosphate
HPO₄²⁻
hydrogen sulfate (bisulfate)
HSO₄⁻
hydroxide
OH⁻
nitrate
NO₃⁻
oxalate
C₂O₄²⁻
permanganate
MnO₄⁻
peroxide
O₂²⁻
phosphate
PO₄³⁻
sulfate
SO₄²⁻
thiocyanate
SCN⁻