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H3O+
hydronium
NH4+
ammonium
Hg2 2+
mercury(1)
OH-
hydroxide
CN-
cyanide
HCO3 -
hydrogen carbonate/bicarbonate
HSO4-
hydrogen sulfate/bisulfate
H2PO4-
dihydrogen phosphate
C2H3O2- or CH3COO-
acetate
SCN-
thicyanate
MnO4-
permanganate
CO3 2-
carbonate
HPO4 2-
hydrogen phosphate/ biphosphate
CRO4 2-
chromate
CR2O7 2-
dichromate
C2O4 2-
oxalate
O2 2-
peroxide
AsO4 3-
arsenate
NO2-
nitrite
NO3-
nitrate
ClO-
hypochlorite
BrO-
hypobromite
IO-
hypoiodite
ClO3-/BrO3-/IO3
chlorate/bromate/iodate
ClO2 -/BrO2 -/IO2 -
chlorite/bromite/iodite
ClO4 -/ BrO4 -/IO4 -
perchlorate/perbromate/periodate
SO3 2-
sulfite
SO4 2-
sulfate
PO3 3-
phosphite
PO4 3-
phosphate
silver
Ag+
zinc
Zn2+
cadmium
Cd2+