Polyatomic Ions

• C2H3O2 - acetate
• NH4+ - ammonium
• CO3^2 - carbonate
• ClH3 - chlorate
• ClH2 - chlorite
• CrO4^2 - chromate
• CN - cyanide
• Cr2O7^2 - dichromate
• HCO3 - bicarbonate
• HSO4 - bisulfate
• HSO3 - bisulfite
• OH - hydroxide
• ClO - hydrochlorite
• NO3 - nitrate
• NO2 - nitrite
• C2O4^2 - oxalate
• ClO4 - perchlorate
• MnO4 - permanganate
• PO4^3 - phosphate