The coefficients in front of H⁺ and Fe³⁺ in the balanced reaction is 8 and 5.
<h3>What is a redox reaction ?</h3>
An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species.
An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
Redox reactions are common and vital to some of the basic functions of life, including photosynthesis, respiration, combustion, and corrosion or rusting.
Fe²⁺ +MnO₄⁻ ⇄ Fe³⁺ + Mn²⁺
Assigning Oxidation numbers
Fe²⁺ : +2
+Mn : + 7 O₄⁻ : -2
Fe³⁺ : +3
Mn²⁺ : +2
Oxidation half reaction Fe²⁺ -----> Fe³⁺ +e-
Reduction half reaction MnO₄⁻ + 5 e⁻ ----> Mn²⁺
After balancing the charge & oxygen atoms
5Fe²⁺ -----> 5Fe³⁺ +5e-
MnO₄⁻ + 5 e⁻ +8H⁺ ----> Mn²⁺ +4H₂O
After adding half reaction
5Fe +MnO₄⁻+8H⁺ ⇄5Fe³⁺ +Mn²⁺ +4H₂O
This is the final balanced reaction.
The coefficients in front of H⁺ and Fe³⁺ in the balanced reaction is 8 and 5.
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