Redox Half-Reaction Balancer
Select common redox couples to view their balanced reduction and oxidation half-reactions.
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Calculation Parameters
Adjust the values below.
Calculated Result
Reaction Type
Reduction
Balanced Half-Reaction
MnO₄⁻ + 8 H⁺ + 5 e⁻ → Mn²⁺ + 4 H₂O
Balancing Process
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Expert Tip
Ensure units are correctly formatted (e.g. Kelvin for gas temperatures and liters for volumes) to get chemically accurate outputs.
Frequently Asked Questions
What is a half-reaction in redox chemistry? ▼
A half-reaction isolates either the oxidation component (loss of e-) or reduction component (gain of e-) of a redox process.
How do you balance oxygen atoms in acidic redox half-reactions? ▼
Add H2O molecules to the side deficient in oxygen, then add H+ ions to balance hydrogen.
How do you convert acidic half-reactions to basic solutions? ▼
Add OH- ions equal to H+ ions to both sides of the equation to neutralize H+ into H2O.
Redox Half-Reaction Balancer
Balance elements other than O and H, balance O using H2O, balance H using H+, and balance charge using electrons (e-).