| 1 | Hydrogentrioxocarbonate(1-) |
| 2 | Hydrogen(trioxidocarbonate)(1-) |
| 3 | Bicarbonate |
| 4 | Hco3(-) |
| 5 | Hydrogentrioxocarbonate(iv) |
| 6 | [co2(oh)](-) |
| 7 | Hydroxidodioxidocarbonate(1-) |
| 8 | Hydrogencarbonate(1-) |
| 9 | Bicarbonate ion |
| 10 | Hco3- |
| 11 | Acid carbonate |
| 12 | Hydrogen carbonate |