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Verified answer
keadaan "basa"CrO₄²⁻ + Fe(OH)₂ → Cr₂O₃ + Fe(OH)₃
2CrO₄²⁻ + Fe(OH)₂ → Cr₂O₃ + Fe(OH)₃
2CrO₄²⁻ + Fe(OH)₂ + 2H⁺ + OH⁻ → Cr₂O₃ + Fe(OH)₃
2CrO₄²⁻ + Fe(OH)₂ + 2H⁺ + OH⁻ → Cr₂O₃ + Fe(OH)₃ + H₂O
2CrO₄²⁻ + Fe(OH)₂ + 2H⁺ + OH⁻ → Cr₂O₃ + Fe(OH)₃ + H₂O + 3e⁻ (setara)