July 2022 1 28 Report
HNO2+Cl2+H2O=HNO3+2HCl
найдите окислитель
1) N   ст.окис.    +3
2) Cl2  ст.окис. 0
3) H   ст.окис.    +1
4) O   ст.окис.    -2
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