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複選題14. 如附圖所示之實驗裝置,小明欲以鋅銀電池在銅片上鍍鎳,則下列敘述哪些正確?(A)導線連接:鋅棒接鎳片;銀棒接銅片 (B)反應時銀、銅片為陰極,鋅、鎳片為陽極 (C)左圖之電池反應後,整個裝
問題詳情
複選題
14. 如附圖所示之實驗裝置,小明欲以鋅銀電池在銅片上鍍鎳,則下列敘述哪些正確?
(A)導線連接:鋅棒接鎳片;銀棒接銅片
(B)反應時銀、銅片為陰極,鋅、鎳片為陽極
(C)左圖之電池反應後,整個裝置中之陽離子總數將增加
(D)銅片鍍上 0.05 莫耳鎳,需以平均 10 安培之電流電鍍 965 秒
(E)電鍍完畢後,三槽內的溶液顏色均發生變化。
參考答案
答案:B,D
統計:A:0,B:2,C:1,D:1,E:0
難度:計算中
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