Science
Junior High
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為什麼甲是Ca2+ ?
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A
a
b
21. 右圖為實驗裝置之示意圖,氯
化鈣溶於水後解離為4個甲粒
子與8個乙粒子,其中甲和乙
均為帶電的粒子。若已知通電
時乙會往a電極移動,則下列
有關此杯水溶液的敘述何者正確?
(A)甲為 CIC²+ 不規則運動
(B)未通電時,乙仍往a電極移動
(C)整個水溶液帶負電電中性
(D) 通電後,兩極會產生化學反應的現象
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