If the above equation is balanced with integer coefficients, the value of is .

Question

If the above equation is balanced with integer coefficients, the value of  is .

Canvas Classes · Accepted Answer

Step 1 — Identify the half-reactions (neutral/alkaline medium):

Reduction: 
Mn:  (gain of 3e⁻)

Oxidation: 
I:  (loss of 1e⁻ per I, 2e⁻ per )

Step 2 — Balance electrons:
LCM of 3 and 2 = 6
- 2  gain  e⁻ → 
- 3  formed from 6  losing 6 e⁻ → ,

Step 3 — Balance O:
Left O from : ; from : 
Right O from : ; from :

Step 4 — Balance H:
Left H from : 
Right H from :

Step 5 — Balance charge:
Left: 
Right:

Step 6 — Find c from (2):

Verify (1):  ✓

Answer:

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