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實驗3- 2酸鹼中和的化學反應

Authored by 霍 建豪

Chemistry

8th Grade

Used 1+ times

實驗3- 2酸鹼中和的化學反應
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

小英欲用食醋進行酸鹼中和反應,實驗室備有下列各種器材與藥品,試回答下列問題。

進行中和食醋的反應時,酚酞指示劑應加入下列何者中?

                                                            

(A)乙 

   (B)丙 

(C)丁

  (D)戊

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

承上題,滴定管中應使用何種溶液?

                                                             

(A)丙

(B)丁

   (C)戊 

   (D)己

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

中和反應過程中,溫度計的讀數變化為何?

                                         

                                        

(A)維持不變

  (B)略為下降

(C)略為上升 

   (D)先上升後下降

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

中和反應過程中,乙杯溶液pH值如何變化?

                                     

                                    

(A)逐漸增加

      (B)逐漸減少

(C)保持不變   

     (D)逐漸減少至7為止

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

整個中和反應過程,乙杯溶液的顏色變化,下列何者正確?

(A)無色→黃色

(B)紅色→無色

(C)紅色→黃色

(D)無色→紅色

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