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最佳答案:Cl2+H2O==HCl+HClOCl2+2NaOH===NaCl+NaClO+H2O2Cl2+2Ca(OH)2===CaCl2+Ca(ClO)2+2H2OCl
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最佳答案:S+O2=SO22H2S+SO2=3S↓+2H2OS+O2=点燃=SO2SO3 + H2O ==== H2SO4H2SO4 + Cu(OH)2 = CuSO4