1. Hypoiodite   C2H3O2   S2O3   IO   ClO2   Hint Half-n-half Clue   2. Bromite   ClO3   ClO2   IO3   BrO2   Half-n-half Clue   3. Periodate   O2   IO4   ClO   IO   Half-n-half Clue   4. Permanganate   C2H3O2   MnO4   ClO2   PO3   Half-n-half Clue   5. Dihydrogen Phosphate   BrO4   MnO4   H2PO4   ClO3   Half-n-half Clue   6. Cyanide   BrO2   CN   ClO2   S2O3   Half-n-half Clue   7. Monohydrogen phosphate   CrO4   SCN   HPO4   Cr2O7   Half-n-half Clue