| Hint | Answer | % Correct |
|---|---|---|
| Nitrate | -NO3 | 80%
|
| Carbonate | -2CO3 | 60%
|
| Phosphite | -3PO3 | 60%
|
| Iodate | -IO3 | 60%
|
| Chlorate | -ClO3 | 40%
|
| Permagnate | -MnO4 | 40%
|
| Peroxide | -2O2 | 20%
|
| Sulfate | -2SO4 | 20%
|
| Phosphate | -3PO4 | 20%
|
| Acetate | -C2H3O2 | 20%
|
| Oxalate | -2C2O4 | 0%
|
| Dichromate | -2Cr2O7 | 0%
|
| Chromate | -2CrO4 | 0%
|
| Thiosulfate | -2S2O3 | 0%
|
| Silicate | -2SiO3 | 0%
|
| Arsenate | -3AsO4 | 0%
|
| Perchlorate | -4ClO4 | 0%
|