?Magnesium, the element, is produced commercially by electrolysis from a molten salt (the “electrolyte”) using a cell similar to the one shown here.

Chapter 20, Problem 20.12

(choose chapter or problem)

Magnesium, the element, is produced commercially by electrolysis from a molten salt (the “electrolyte”) using a cell similar to the one shown here.

(a) What is the most common oxidation number for Mg when it is part of a salt?

(b) Chlorine gas is evolved as voltage is applied in the cell. Knowing this, identify the electrolyte.

(c) Recall that in an electrolytic cell the anode is given the + sign and the cathode is given the – sign, which is the opposite of what we see in batteries. What half-reaction occurs at the anode in this electrolytic cell?

(d) What half-reaction occurs at the cathode? [Section 20.9]

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