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Ions
| Question | Answer |
|---|---|
| mercurous / mercury (I) | HG2 (+2) |
| cuprous / copper (I) | Cu (+) |
| ammonium | NH4 (+) |
| silver | Ag (+) |
| stannous / tin (II) | Sn (+2) |
| nickel (II) | Ni (+2) |
| cupric / copper (II) | Cu (+2) |
| ferrous / iron (II) | Fe (+2) |
| plumbous / lead (II) | Pb (+2) |
| mercuric / mercury (II) | Hg (+2) |
| manganous / manganese (II) | Mn (+2) |
| chromium (II) | Cr (+2) |
| cobaltous / cobalt (II) | Co (+2) |
| cobaltic / cobalt (III) | Co (+3) |
| ferric / iron (III) | Fe (+3) |
| chromium (III) | Cr (+3) |
| nickel(III) | Ni (+3) |
| manganic / manganese (III) | Mn(+3) |
| plumbic / lead (IV) | Pb (+4) |
| stannic / tin (IV) | Sn (+4) |
| hypochlorite | CLO (-) |
| hydroxide | OH (-) |
| acetate | C2 H3 O2 (-) |
| chlorate | CLO3 (-) |
| nitrate | NO3 (-) |
| nitrite | NO2 (-) |
| cyanide | CN (-) |
| hydrogen sulfite / bisulfite | HSO3 (-) |
| perchlorate | clo4 (-) |
| hydrogen sulfate / bisulfate | HSO4 (-) |
| hydrogen sulfide / bisulfide | HS (-) |
| hydrogen carbonate / bicarbonate | HCO3 (-) |
| chlorite | clo2 (-) |
| peroxide | o2 (-2) |
| permanganate | MnO4 (-) |
| dihydrogen phosphate | H2PO4 (-) |
| bromate | BrO3 (-) |
| iodate | IO3 (-) |
| periodate | IO4 (-) |
| carbonate | CO3 (-2) |
| sulfate | SO4 (-2) |
| sulfite | SO3 (-2) |
| oxalate | C2O4 (-2) |
| chromate | CrO4 (-2) |
| dichromate | Cr2O7 (-2) |
| hydrogen phosphate / biphosphate | HPO4 (-2) |
| silicate | SiO3 (-2) |
| thoisulfate | S2O3 (-2) |
| phosphate | PO4 (-3) |
| phosphite | PO3 (-3) |
| arsenate | AsO4 (-3) |