July 2022 1 3 Report
Cocтавить електронный баланс, определить окислитель и востоновитель
a) K2Cr2 O7 + FeSO4 + H2SO4 = Fe2(SO4)3 + Cr2 (SO4)3 + K2SO4 + H2O
b) P + HNO3 + H2O = H3PO4 +NO
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