鋅的活性大於銅,所以銅當正極,鋅當負極,因此電子從鋅經導線流向銅,為往上流動;鹽橋作用為平衡電荷,正離子流向正極(銅),負離子流向負極(鋅),所以甲為正離子向下流動。
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鋅的活性大於銅,所以銅當正極,鋅當負極,因此電子從鋅經導線流向銅,為往上流動;鹽橋作用為平衡電荷,正離子流向正極(銅),負離子流向負極(鋅),所以甲為正離子向下流動。
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