November 2021 1 9 Report
Определите степени окисления каждого элемента. Укажите,какой из элементов восстанавливается.
K+H2 - KH
Al+HCl - AlCl3+H2
HCL+ MnO2 - Cl2+ H2O
KNO2+K2Cr2O2+H2SO4 - KNO3+ +Cr2(SO4)3+K2SO4+H2O
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