Essential Chemistry for IGCSE - Metals And Reactivity (Section 5 - No. 15)
In the reaction between magnesium and copper(II) sulfate, what happens to the copper ions?
They are oxidized.
They are reduced.
They form a precipitate.
They react with magnesium to form magnesium sulfate.
Explanation
The copper ions gain electrons from the magnesium, hence they are reduced.
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