An essential mineral needed in the human diet is the potassium ion. The movement of potassium ions, K+ (aq), in and out of nerve cells allows these cells to transmit the electrical impulses needed to control muscle responses. Explain, in terms of conductivity, why a solution of KCl is a "good" conductor, whereas solid KCl does not conduct at all. Refer to both substances in your answer.
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An essential mineral needed in the human diet is the potassium ion. The movement of potassium ions,...
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