| Polyatomic Anion | Acid Name | Acid Formula |
|---|---|---|
| sulfate | sulfuric acid | H2SO4 |
| sulfite | sulfurous acid | H2SO3 |
| nitrate | nitric acid | HNO3 |
| nitrite | nitrous acid | HNO2 |
| hypochlorite | hypochlorous acid | HClO |
| chlorite | chlorous acid | HClO2 |
| chlorate | chloric acid | HClO3 |
| perchlorate | perchloric acid | HClO4 |