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Problem: In the reaction Mg(s) + 2HCl(aq) → MgCl 2(aq) + H2(g), what role does magnesium play?

FREE Expert Solution

To determine the role of magnesium Mg(s) in the reaction, we must identify the changes in their oxidation states. Compare the oxidation number of the element on the reactant side and on the product side.


Remember the mnemonics:

Loss                Gain

Electrons         Electrons

Oxidation         Reduction

Reducing         Oxidizing

Agent               Agent


Reaction:

Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g)


Recall the rules for the oxidation states of some elements


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Problem Details

In the reaction Mg(s) + 2HCl(aq) → MgCl 2(aq) + H2(g), what role does magnesium play?

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 Redox Reactions concept. If you need more Redox Reactions practice, you can also practice Redox Reactions practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Welch's class at UVA.