Balance the chemical equation by the oxidation number method.
(vi) `FeCl_(3) + H_(2)S to FeCl_(2) + S + HCl `

Explanation

To balance the chemical equation `FeCl₃ + H₂S → FeCl₂ + S + HCl` using the oxidation number method, follow these steps:

### Step 1: Assign Oxidation Numbers
- In `FeCl₃`:
- Fe: +3
- Cl: -1
- In `H₂S`:
- H: +1
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