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polyatomic ions
| Question | Answer |
|---|---|
| nitrate | NO↓3- |
| nitrite | NO↓2- |
| chromate | CrO↓4 2- |
| dichromate | Cr↓2O↓7 2- |
| cyanide | CN- |
| permanganate | MnO↓4- |
| hydroxide | OH- |
| carbonate | CO↓3 2- |
| sulfate | SO↓4 2- |
| sulfite | SO↓3 2- |
| oxalate | C↓2O↓4 2- |
| phosphate | PO↓4 3- |
| phosphite | PO↓3 3- |
| perchlorate | ClO↓4- |
| chlorate | ClO↓3- |
| chlorite | ClO↓2- |
| hypochlorite | ClO- |
| iodate | IO↓3- |
| bromate | BrO↓3- |
| arsenate | AsO↓4 3- |
| silicate | SiO↓3 2- |
| borate | BO↓3 3- |
| thiocyanate | SCN |
| acetate | C↓2H↓3O↓2- (or CH↓3COO-) |
| there is 1 positive polyatomic ion, which is | NH↓4+ |
| 1 | mono |
| 2 | di |
| 3 | tri |
| 4 | tetra |
| 5 | penta |
| 6 | hexa |
| 7 | hepta |
| 8 | octa |
| 9 | nona |
| 10 | deca |