Окислительно-восстановительная реакция
1)SO2^0+HIO3^- =S^0+I2^0+H20
2)KNO2^-+KI^-+Y2SO4=NO^0+I2^0+K2SO4+H2O
3)NA^0+HNO3^- =NA^+NO3+N2O^0+H2O
4)Y2S^0+SO2^0 =S^-+H2O
1)SO2^0+HIO3^- =S^0+I2^0+H20
2)KNO2^-+KI^-+Y2SO4=NO^0+I2^0+K2SO4+H2O
3)NA^0+HNO3^- =NA^+NO3+N2O^0+H2O
4)Y2S^0+SO2^0 =S^-+H2O
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2-KNO2+2LKI