IMPORTANT COMPOUND IONS CHEAT SHEET Ammonium NH4+ Hydrogencarbonate HCO3- Nitrate NO3- Hypochlorite ClO- Sulfate SO42- Chlorite ClO2- Hydrogensulfate HSO4- Chlorate ClO3- Hydroxide OH- Perchlorate ClO4- Cyanide CN- Ethanoate C2H3O2- Phosphate PO43- Permanganate MnO4- Hydrogenphosphate HPO42- Chromate CrO42- Dihydrogen Phosphate H2PO4- Dichromate Cr2O72- Carbonate CO32- Peroxide O22- IMPORTANT COMPOUND IONS CHEAT S HEET Ammonium NH4+ Hydrogencarbonate HCO3- Nitrate NO3- Hypochlorite ClO- Sulfate SO42- Chlorite ClO2- Hydrogensulfate HSO4- Chlorate ClO3- Hydroxide OH- Perchlorate ClO4- Cyanide CN- Ethanoate C2H3O2- Phosphate PO43- Permanganate MnO4- Hydrogenphosphate HPO42- Chromate CrO42- Dihydrogen Phosphate H2PO4- Dichromate Cr2O72- Carbonate CO32- Peroxide O22-