<p>Hey can somebody please help me with these questions? They're from an oxidation-reduction lab. </p>
<ol>
<li><p>How can potassium thiocyanate be used to confirm that Fe2+ ions have been oxidized to Fe3+?</p></li>
<li><p>How can potassium ferricyanide be used to confirm that Fe3+ ions have been reduced to Fe2+? </p></li>
</ol>
<p>Thanks!!</p>