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實驗3-1電解質與非電解質的區分

Authored by 霍 建豪

Chemistry

8th Grade

實驗3-1電解質與非電解質的區分
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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明華以圖(一)的實驗裝置試驗下列5種水溶液的導電性,實驗結果如表(一)所示,試回答下列問題。

上述實驗中的5種物質,屬於電解質的物質有幾種?

                                    

(A) 2種 

  (B) 3種  

    (C) 4種 

          (D) 5種都是

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

        硫酸(H2SO4)溶解在水中情形的示意圖,下列何者正確?

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

                     會使燈泡亮的水溶液,所帶電性為何?

                                    

                              

(A)一定帶正電

   (B)一定帶負電

(C)一定呈電的中性

(D)可能帶正電或帶負電

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

                     關於明華實驗結果的推論,下列何者正確?

(A)燈泡不亮表示物質難溶於水

(B)C6H12O6、HCl為非電解質

(C)燈泡亮表示物質為非電解質

(D)NaOH、HCl為鹼性物質

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列各物質溶於水的解離反應式,何者正確?                         

                                         

(A)H2SO4→H2+SO42- 

  (B)NaOH→Na+O2-+H

(C)HCl→H+Cl

  (D)KNO3→K+NO3

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