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Artem7707
@Artem7707
October 2021
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wasurenagusa
2CrO3 + 6KCl + 6H2SO4 = Cr2(SO4)3 + 3Cl2 + 3K2SO4 + 6H2O
CrO3 + 3e + 6H⁺ = Cr³⁺ + 3H2O x2 о-ль
2Cl⁻ - 2e = Cl2 x3 в-ль
CuS + H2O2 + H2SO4 = CuSO4 + S + 2H2O
CuS - 2e = Cu²⁺ + S⁰ в-ль
H2O2 + 2e + 2H⁺ = 2H2O о-ль
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Answers & Comments
CrO3 + 3e + 6H⁺ = Cr³⁺ + 3H2O x2 о-ль
2Cl⁻ - 2e = Cl2 x3 в-ль
CuS + H2O2 + H2SO4 = CuSO4 + S + 2H2O
CuS - 2e = Cu²⁺ + S⁰ в-ль
H2O2 + 2e + 2H⁺ = 2H2O о-ль