① 10 HNO3 + I2 = 10 NO2 + 4 H2O + 2 HIO3
② Sn + 4 HNO3 = SnO2 + 4 NO2 + 2 H2O
③ 2 NO + O2 = 2 NO2
④ 2 KClO3 = 2 KCl + 3 O2
⑤ Cu + 2 H2SO4 = CuSO4 + SO2 + 2 H2O
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① 10 HNO3 + I2 = 10 NO2 + 4 H2O + 2 HIO3
② Sn + 4 HNO3 = SnO2 + 4 NO2 + 2 H2O
③ 2 NO + O2 = 2 NO2
④ 2 KClO3 = 2 KCl + 3 O2
⑤ Cu + 2 H2SO4 = CuSO4 + SO2 + 2 H2O