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rimakarapetyan12
@rimakarapetyan12
July 2022
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Расставьте коэффициенты с помощью электронного баланса:
а) CrCl2+HCl+O2->CrCl3+H2O
б) H2C2O4+MnO2+H2SO4->CO2+MnSO4+H2O
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dec77cat
4CrCl₂ + 4HCl + O₂ = 4CrCl₃ + 2H₂O
Cr⁺² - e = Cr⁺³ 4
O₂ + 4e = 2O⁻² 1
H₂C₂O₄ + MnO₂ + H₂SO₄ = 2CO₂ + MnSO₄ + 2H₂O
C⁺³ - e = C⁺⁴ 2
Mn⁺⁴ + 2e = Mn²⁺ 1
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Answers & Comments
Cr⁺² - e = Cr⁺³ 4
O₂ + 4e = 2O⁻² 1
H₂C₂O₄ + MnO₂ + H₂SO₄ = 2CO₂ + MnSO₄ + 2H₂O
C⁺³ - e = C⁺⁴ 2
Mn⁺⁴ + 2e = Mn²⁺ 1