Question: (a) What are the similarities and differences between Figure 20.3 and Figure 20.4? (b) Why are Na+ ions drawn into the cathode half-cell as the

(a) What are the similarities and differences between Figure 20.3 and Figure 20.4?
(b) Why are Na+ ions drawn into the cathode half-cell as the voltaic cell shown in Figure 20.5 operates?

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