Science
Junior High
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國二理化,請問圖片中由哪裡可以判斷a是正極?
√14.( ) 如圖為實驗裝置之示意圖,某鹽類溶於水後解離
為4個甲粒子與8個乙粒子,其中甲和乙均為帶
電的粒子。若已知乙為Cl,則下列有關此杯水
溶液的敘述何者正確?[95.基測I]
(A)甲可能為 Nat
(B)未通電時,甲和乙均分散於水中且靜止不動
(C)水溶液中,負電荷的總電量多於正電荷的總電量
15 2
(D)通電後,甲粒子會向b電極移動、乙粒子會向a電極移動。
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