Consult the table of standard electrode potential and suggest three substances that can oxidize `Fe^(2+)` ions under suitable conditions.

Explanation

To determine three substances that can oxidize \( \text{Fe}^{2+} \) ions, we will refer to the standard electrode potentials. The oxidation of \( \text{Fe}^{2+} \) ions involves the following half-reaction:

\[ \text{Fe}^{2+} \rightarrow \text{Fe}^{3+} + e^- \]

The standard electrode potential for this half-reaction is \( E^\circ = -0.77 \, \text{V} \). To find substances that can oxidize \( \text{Fe}^{2+} \), we need to look for species that have a higher (more positive) standard electrode potential than \( -0.77 \, \text{V} \).

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