KNO₂ + PbO₂ + 4HCl -> KNO₃ + PbCl₂ + 2H₂O (NH₄)₂Cr₂O₇ -> N₂ + Cr₂O₃ + 4H₂O 3Cl₂ + 6KOH -> 5KOCl + KCl + 3H₂O
KNO₂ + PbO₂ + 4HCl -> KNO₃ + PbCl₂ + 2H₂O
(NH₄)₂Cr₂O₇ -> N₂ + Cr₂O₃ + 4H₂O
3Cl₂ + 6KOH -> 5KOCl + KCl + 3H₂O