Common Polyatomic Ions

Ammonium

 

 

 

NH2+

Hydronium

 

 

H3O+

Mercury (I)

 

 

Hg22+

Dihydrogen Phosphite
H2PO3
Dihydrogen phospate

 

 

HPO42-

Hydrogen Carbonate

 

 

HCO3

Hydrogen sulfite
HSO3
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