氯化鈉溶液與鎂如何通電

There is electron transfer from Mg to Cu because Cu is less reactive than Mg and Mg loses electrons more steadily.Since there is electron transfer, the electricity can be conducted.

2007-06-17 14:32:33 補充：
At the positive electrode: 2H+ +2e- ---> H2At the negative electrode: Mg --->Mg2+ +2e-Because there is electron transfer, the electricity can be conducted.