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Chem H2
| Question | Answer |
|---|---|
| Charges for chromium | (Cr) II and III |
| Charges for manganese | (Mn) II and III |
| Charges for iron | (Fe) II and III |
| Charges for cobalt | (Co) II and III |
| Charges for nickel | (Ni) II and III |
| Charges for gold | (Au) I and III |
| Charges for copper | (Cu) I and II |
| Charges for mercury | (Hg) I and II |
| Charges for tin | (Sn) II and IV |
| Charges for lead | (Pb) II and IV |
| Charges for bismuth | (Bi) III and V |