February 2019 0 58 Report
Zbilansuj równania reakcji redoks :
H2S + HNO3 ===> H2SO3 + HNO2
H2O2 + Zn ===> ZnO + H2O
K2Cr2O7 + NH3 ===> Cr2O3 + KNO2
K2Cr2O7 + NH3 ===> Cr2O3 + HNO2

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