"""
Common Polyatomic Ions
1. Ammonium: NH4+
2. Hydronium: H3O+
Anions:
1. Acetate: C2H3O2- or CH3COO-
2. Carbonate: CO3^2-
3. Bicarbonate (Hydrogen carbonate): HCO3-
4. Sulfate: SO4^2-
5. Hydrogen sulfate (Bisulfate): HSO4-
6. Sulfite: SO3^2-
7. Hydrogen sulfite (Bisulfite): HSO3-
8. Phosphate: PO4^3-
9. Hydrogen phosphate: HPO4^2-
10. Dihydrogen phosphate: H2PO4-
11. Nitrate: NO3-
12. Nitrite: NO2-
13. Chlorate: ClO3-
14. Chlorite: ClO2-
15. Hypochlorite: ClO-
16. Perchlorate: ClO4-
17. Chromate: CrO4^2-
18. Dichromate: Cr2O7^2-
19. Permanganate: MnO4-
20. Cyanide: CN-
21. Thiocyanate: SCN-
22. Hydroxide: OH-
23. Oxalate: C2O4^2-
24. Peroxide: O2^2-
25. Thiosulfate: S2O3^2-
26. Arsenate: AsO4^3-
27. Arsenite: AsO3^3-
28. Borate: BO3^3-
29. Silicate: SiO3^2-
30. Selenate: SeO4^2-
31. Tartrate: C4H4O6^2-
32. Phosphite: PO3^3-
"""