The list (the Redox Activity series) of reduction reactions is a helpful tool fo
ID: 723473 • Letter: T
Question
The list (the Redox Activity series) of reduction reactions is a helpful tool for predicting how two metals will interact with one another. Suppose that we are looking for a metal to react in a specific manner with magnesium. Which of the following correctly describes and lists the metal that will achieve our desired goal?
a)We want a metal ion that will not cause magnesium to be oxidized spontaneously. We choose silver ion.
b)We want a metal that will cause magnesium ion(Mg2+?) to be reduced spontaneously. We choose calcium metal.
c)We want a metal ion that will be reduced spontaneously by magnesium. We choose sodium ion.
d)We want a metal ion that will not be reduced spontaneously by magnesium. We choose copper ion.
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Explanation / Answer
solution is (a) To change the wording, we want a metal that is less likely to reduce than Magnesium. Is Silver less likely to reduce than Magnesium? No, based on the Standard Reduction Potential. (b) To change the wording, we want a metal that is less likely to reduce than Magnesium. Is Calcium less likely to reduce than Magnesium? Yes, based on the Standard Reduction Potential. (c) To change the wording, we want a metal that is more likely to reduce than Magnesium. Is Sodium more likely to reduce than Magnesium? No, based on the Standard Reduction Potential. (d) To change the wording, we want a metal that is less likely to reduce than Magnesium. Is Copper less likely to reduce than Magnesium? No, based on the Standard Reduction Potential.
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