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shetininaanna
@shetininaanna
July 2022
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Cr2O3 + NаClO3 + NаOH → Nа2CrO4 + NаCl + H2O; электронно ионный баланс
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MMort78
Cr2O3+NaClO3+4NaOH=2Na2CrO4+NaCl+2H2O
Cr2O3+ClO3⁻+OH⁻=CrO4²⁻+Cl⁻+H2O
Cr2O3+10OH⁻ -6e=2CrO4²⁻+5H2O
ClO3⁻+3H2O+6e=Cl⁻+6OH⁻
Электронный баланс равен шести
Cr2O3+10OH⁻+ClO3⁻+3H2O=2CrO4²⁻+5H2O+Cl⁻+6OH⁻
Сокращаем
Cr2O3+4OH⁻+ClO3⁻=2CrO4²⁻+2H2O+Cl⁻
5 votes
Thanks 3
shetininaanna
Вы не могли бы еще с одним помочь? Li2MnO4 + H2O → LiMnO4 + MnO2 + LiOH.
MMort78
Кину в лс
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Answers & Comments
Cr2O3+ClO3⁻+OH⁻=CrO4²⁻+Cl⁻+H2O
Cr2O3+10OH⁻ -6e=2CrO4²⁻+5H2O
ClO3⁻+3H2O+6e=Cl⁻+6OH⁻
Электронный баланс равен шести
Cr2O3+10OH⁻+ClO3⁻+3H2O=2CrO4²⁻+5H2O+Cl⁻+6OH⁻
Сокращаем
Cr2O3+4OH⁻+ClO3⁻=2CrO4²⁻+2H2O+Cl⁻