Balance the redox reaction by half reaction method :
`Br_(2)+ H_(2)O_(2) to BrO_(3)^(-) + H_(2)O` (in acidic medium)

Explanation

To balance the redox reaction `Br2 + H2O2 → BrO3^(-) + H2O` in acidic medium using the half-reaction method, follow these steps:

### Step 1: Identify the oxidation and reduction half-reactions
- **Oxidation half-reaction**: `Br2 → BrO3^(-)`
- **Reduction half-reaction**: `H2O2 → H2O`

### Step 2: Assign oxidation states
- In `Br2`, bromine (Br) has an oxidation state of 0.
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