| Hint | Answer | % Correct | |
|---|---|---|---|
| NH4+ | (+1) | ammonium | 91%
|
| NO3- | (-1) | Nitrate | 90%
|
| OH- | (-1) | hydroxide | 88%
|
| NO2- | (-1) | Nitrite | 82%
|
| *ClO3- | (-1) | Chlorate | 78%
|
| *ClO2- | (-1) | Chlorite | 78%
|
| CN- | (-1) | Cyanide | 75%
|
| PO4^3- | (-3) | Phosphate | 75%
|
| SO4^2- | (-2) | Sulfate | 75%
|
| SO3^2- | (-2) | Sulfite | 73%
|
| *ClO4- | (-1) | Perchlorate | 70%
|
| CO3^2- | (-2) | Carbonate | 69%
|
| CrO4^2- | (-2) | Chromate | 66%
|
| PO3^3- | (-3) | Phosphite | 66%
|
| *ClO- | (-1) | Hypochlorite | 65%
|
| MnO4- | (-1) | Permanganate | 64%
|
| C2H3O2- | (-1) | Acetate | 58%
|
| HCO3- | (-1) | Hydrogen carbonate | 57%
|
| Cr2O7^2 | (-2) | Dichromate | 56%
|
| H2PO4- | (-1) | Dihydrogen Phosphate | 42%
|