| Hint | Answer | % Correct |
|---|---|---|
| Ammonium | NH4+1 | 100%
|
| Chlorite | ClO2-1 | 74%
|
| Chlorate | ClO3-1 | 74%
|
| Perchlorate | ClO4-1 | 74%
|
| Nitrate | NO3-1 | 74%
|
| Hypochlorite | ClO-1 | 71%
|
| Nitrite | NO2-1 | 71%
|
| Hydroxide | OH-1 | 71%
|
| Acetate | C2H3O2-1 | 68%
|
| Cyanide | CN-1 | 68%
|
| Carbonate | CO3-2 | 68%
|
| Bicarbonate | HCO3-1 | 68%
|
| Iodate | IO3-1 | 65%
|
| Bromate | BrO3-1 | 62%
|
| Perbromate | BrO4-1 | 62%
|
| Chromate | CrO4-2 | 62%
|
| Phosphite | PO3-3 | 62%
|
| Phosphate | PO4-3 | 62%
|
| Sulfate | SO4-2 | 62%
|
| Bisulfate | HSO4-1 | 59%
|
| Permanganate | MnO4-1 | 59%
|
| Sulfite | SO3-2 | 59%
|
| Peroxide | O2-2 | 56%
|
| Dichromate | Cr2O7-2 | 53%
|
| Arsenate | AsO4-3 | 47%
|
| Borate | BO3-3 | 47%
|
| Oxalate | C2O4-2 | 47%
|
| Dihydrogen Phosphate | H2PO4-1 | 47%
|
| Selenate | SeO4-2 | 47%
|
| Silicate | SiO3-2 | 47%
|
| Thiosulfate | S2O3-2 | 41%
|
| Thiocyanate | SCN-1 | 41%
|