Problem: Which metal could you use to reduce Mn2+ ions but not Mg2+ ions?A. AlB. ZnC. CaD. Cr

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We’re being asked to determine the metal could be used to reduce Mn2+ ions but not Mg2+ ions.

Recall the mnemonics LEO GER.

Lose               Gain

Electron         Electrons

Oxidation       Reduction


The ease to remove an electron from an element is also related to cell potential.

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Problem Details

Which metal could you use to reduce Mn2+ ions but not Mg2+ ions?

A. Al

B. Zn

C. Ca

D. Cr

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Cell Potential concept. If you need more Cell Potential practice, you can also practice Cell Potential practice problems.