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AP Chemisty top 21 common polyatomic ions for studying.

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Name
Formula
NH4 (charge 1+)   ammonium ion  
CN (charge 1-)   cyanide ion  
CH3CO (charge 1-)   acetate ion  
CO3 (charge 2-)   carbonate ion  
HCO3 (charge 1-)   hydrogen carbonate  
NO2 (charge 1-)   nitrite ion  
NO3 (charge 1-)   nitrate ion  
PO4 (charge 3-)   phosphate ion  
HPO4 (charge 2-)   hydrogen phosphate ion  
H2PO4 (chage 1-)   dihydrogen phosphate ion  
OH (charge 1-)   hydroxide ion  
SO3 (charge 2-)   sulfite ion  
SO4 (charge 2-)   sulfate ion  
HSO4 (charge 1-)   hydrogen sulfate ion  
ClO (charge 1-)   hypochlorite ion  
ClO2 (charge 1-)   chlorite ion  
ClO3 (charge 1-)   chlorate ion  
ClO4 (charge 1-)   perchlorate ion  
CrO4 (charge 2-)   chromate ion  
Cr2O7 (charge 2-)   dichromate ion  
MnO4 (charge -1)   permaganate ion  


   


 

 

 

 

 

 
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