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2. 附圖是電解質導電時,水溶液中離子移動方向的示意圖,請問水溶液可能溶解了下列哪一種電解質? (A)氫氧化鈷 (B)氨水 (C)水 (D)氟化銀
問題詳情
2. 附圖是電解質導電時,水溶液中離子移動方向的示意圖,請問水溶液可能溶解了下列哪一種電解質?
(A)氫氧化鈷
(B)氨水
(C)水
(D)氟化銀
參考答案
上一篇 :
1.加入下列何種物質,可使蒸餾水 pH 值上升?(A)C2H5OH (B)NaCl (C)CuSO4(D)NH3
下一篇 :
4. 阿麗看到書上介紹一種動物:具有四肢、長尾,表皮光滑濕黏,可用肺呼吸,行體外愛精,其外形示意圖如圖(四)。根據以上資料,判斷此動物最可能為下列何種組合? (A)兩生類—蜥蜴 (B)爬蟲類—蜥蜴 (
資訊推薦
3.取相同質量的下列各溶液溶解成同體積水溶液,則何者 pH 值最大?(A)NaOH (B)KOH (C)HCl (D)Ca(OH)2
4.下列哪兩組反應會有黃色沉澱產生?(A)氯化鋇溶液與碳酸鈉溶液混合 (B)碳酸鈣加稀鹽酸(C)鹽酸加硫代硫酸鈉 (D)二氧化碳通入氫氧化鈣水溶液
5.在一個無風的下午,阿牛對著遠處的山壁喊了一聲「喂!」,不久後他聽見遠方傳回來「喂!」的回聲,則關於喊了一聲「喂!」舆回聲「喂!」的敘述,下列何者錯誤?(A)兩聲波播時均需要介質 (B)兩聲波遇到障
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5.如附圖所示,依潔在裝有 20mL 水的甲試管加入 10 克的氯化鈉,充分的攪拌均勻,發現試管底部還有少許沉澱產生,接著她從甲試管中取 5mL 的上層溶液倒入乙試管中,在加入 1 克的氯化鈉並充分攪
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8. 某科學研究計畫在南大西洋中洋脊兩側取得海洋地殼的樣本,其中四個取樣點分別為甲、乙、丙、丁,如圖(五)所示,則比較四點海洋地殼的年齡,何者最老? (A)離中洋脊最近的甲(B)位在非洲板塊的乙(C)
1 近年來信用卡等塑膠貨幣有漸漸取代其他交易媒介的趨勢,究其原因,下列何者不正確?(A) 不易變質(B) 攜帶方便(C) 本身價值高(D) 被人們接受
6.在三個質量、大小均相同的燒杯中,盛裝液體不等的甲、乙、丙三種液體,如附圖所示。任意取兩杯液體分別置於已歸零的等臂天平兩端,天平皆保持平衡,由此可推知三種液體的密度大小順序為何? (A)丙>甲>乙(
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