1)KMnO4+K2S+H2O→S+MnO2+KOH
2)SO2+I2+H2O→H2SO4+HI
3)S+NaOH→NarS+NarSO3+H2O
Помогите пожалуйста срочно!!!!!!!!! Даю 40 баллов​
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