Hi, help please!!?

2020-07-07 5:01 pm
Using the half-reaction method to complete and balance the following redox reaction. Include the net ionic equation in its simplified form. Remember to dissociate or ionize where possible. 
ClO2 - (aq) + Fe (s) --> Fe^3+ (aq) + Cl- (aq)

回答 (1)

2020-07-07 5:39 pm
✔ 最佳答案
Suppose the reaction undergoes in acidic solution.

Oxidation half equation: Fe(s) → Fe³⁺(aq) + 3e⁻
Reduction half equation: ClO₂⁻(aq) + 4H⁺(aq) + 4e⁻ → Cl⁻(aq) + 2H₂O(ℓ)

(Oxidation half equation)×4 + (Reduction half equation)×3, and cancel 12e⁻ on each side.
The overall net ionic equation is:
3ClO₂⁻(aq) + 4Fe(s) + 12H⁺(aq) → 4Fe³⁺(aq) + 3Cl⁻(aq) + 6H₂O(ℓ)


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