Why is it not possible to balance the following equation ?
`Cr_(2)O_(7)^(2-)+Fe^(3+)+H^(+)toCr^(3+)+Fe^(2-)+H_(2)O`.

Explanation

To determine why the given equation cannot be balanced, we need to analyze the oxidation states of the elements involved and check for oxidation and reduction processes.

### Step-by-Step Solution:

1. **Write the Given Reaction:**
\[ \text{Cr}_2\text{O}_7^{2-} + \text{Fe}^{3+} + \text{H}^+ \rightarrow \text{Cr}^{3+} + \text{Fe}^{2+} + \text{H}_2\text{O} \]
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