Zbilansuj równanie typu red-ox: K2Cr2O7 + H2C2O4 + H2SO4 = Cr2(SO4)3 + K2SO4 + CO2 + H2O
K2Cr2O7 + 3H2C2O4 + 4H2SO4 ---> Cr2(SO4)3 + K2SO4 + 6CO2 + 7H2O
2Cr(VI) + 6e ---> 2Cr(III) /*1
2C(III) - 2e --->2C(IV) /*3
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K2Cr2O7 + 3H2C2O4 + 4H2SO4 ---> Cr2(SO4)3 + K2SO4 + 6CO2 + 7H2O
2Cr(VI) + 6e ---> 2Cr(III) /*1
2C(III) - 2e --->2C(IV) /*3