Polyatomic ions

acetate
C2H3O2
bromate
BrO3
chlorate  
ClO3
chlorite     
ClO2
cyanide 
CN
hydrogen carbonate  
HCO3
hydroxide
OH
hypochlorite  
ClO

iodate

  IO3
nitrate 
 NO3
nitrite
 NO2
perchlorate 
ClO4
permanganate
MnO4
thiocyanate 
SCN
carbonate 
CO32-
chromate 
CrO42-
dichromate 
Cr2O72-
oxalate
C2O42-
sulfate 
SO42-
sulfite      
SO32-
thiosulfate
S2O32-
arsenate 
 AsO43-
borate 
BO33-
phosphate
PO43-
ammonium 
NH4+
hydronium 
H3O+
x

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