Balance the chemical equation by the oxidation number method.
(v) `SnO_(2) + C to Sn + CO`

Explanation

To balance the chemical equation \( \text{SnO}_2 + \text{C} \rightarrow \text{Sn} + \text{CO} \) using the oxidation number method, follow these steps:

### Step 1: Assign Oxidation Numbers
- For \( \text{SnO}_2 \):
- Oxygen (O) has an oxidation number of -2.
- Let the oxidation number of Sn be \( x \).
- The equation for the oxidation state is: \( x + 2(-2) = 0 \)
- Thus, \( x = +4 \) (for Sn in \( \text{SnO}_2 \)).
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