polyatomic ions

HCO3
hydrogen carbonate
C2O42-
oxalate
C2H3O2
acetate
CN
cyanide
H2PO4              
dihydrogen phosphate
PO3b3-                 
phosphite
PO43-                  
phosphate
HPO42-                
hydrogen phosphate
CrO42-               
chromate
Cr2O72-               
dichromate
IO3                    
iodate
BrO3                    
bromate
ClO4                   
perchlorate
ClO2                          
chlorite
ClO                     
hypochlorite
ClO3                  
chlorate
SO32-                 
sulfite
HSO4                
hydrogen sulfate
HSO3                
hydrogen sulfite
S2O32-                
thiosulfate
SO42-                  
sulfate
NO2                 
nitrite
SCN                
thiocyanate
NH4+                
ammonium
H3O+               
hydronium
NO3                
nitrate
OH                  
hydroxide
MnO4           
permanganate
O22-               
peroxide
C6H5O73-       
citrate
x

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