| Hint | Answer | % Correct |
|---|---|---|
| NH4(+) | ammonium | 90%
|
| NO3(-) | nitrate | 90%
|
| OH(-) | hydroxide | 88%
|
| NO2(-) | nitrite | 86%
|
| SO4(2-) | sulfate | 86%
|
| SO3(2-) | sulfite | 82%
|
| PO4(3-) | phosphate | 77%
|
| C2H3O2(-) | acetate | 73%
|
| CO3(2-) | carbonate | 73%
|
| CrO4(2-) | chromate | 72%
|
| CN(-) | cyanide | 69%
|
| HCO3(-) | bicarbonate | 62%
|
| MnO4(-) | permanganate | 62%
|
| HSO4(-) | bisulfate | 60%
|
| O2(2-) | peroxide | 53%
|
| Cr2O7(2-) | dichromate | 49%
|
| SCN(-) | thiocyanate | 24%
|
| C2O4(2-) | oxalate | 23%
|
| S2O3(2-) | thiosulfate | 15%
|