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mrlukecage
@mrlukecage
July 2022
1
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напишите уравнения реакций:
MnO2+H2SO4 конц-
PbO2+H2SO4конц-
K2Cr2O7+H2SO4конц-
KMnO4+H2SO4конц-
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gamebog
MnO2 + H2SO4 = MnSO4 + O2 + H2O
PbO2 + H2SO4 = PbSO4 + O2 + H2O
K2Cr2O7 + 7H2SO4 + 6KI → Cr2(SO4)3 + 3I2 + 4K2SO4 + 7H2O
KMnO4 + H2SO4 = H2O + K2SO4 + MnSO4 + O3
4 votes
Thanks 3
gamebog
отметь как лучший =)
mrlukecage
HOROSHO
gamebog
спс
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Answers & Comments
PbO2 + H2SO4 = PbSO4 + O2 + H2O
K2Cr2O7 + 7H2SO4 + 6KI → Cr2(SO4)3 + 3I2 + 4K2SO4 + 7H2O
KMnO4 + H2SO4 = H2O + K2SO4 + MnSO4 + O3