Hình vẽ sau mô tả thí nghiệm điều chế khí Z: Phương trình hóa học điều chế khí Z là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the word that has the underlined part pronounced differently from the rest: 

  tragic                    mature                       husband                       another

• Choose the word that has the underlined part pronounced differently from the rest: 

  condition                    general                     professor                      another

• Find a mistake in the four underlined parts of the sentence and correct it:

  Although our poor living conditions, we all feel happy.

• Choose the best answer for the following sentence:

  My father ___________ the Internet when my mother was cooking dinner.
   

• Choose the best answer for the following sentence:

  Before you are ready, the email ____________.
  
  

• Choose the best answer for the following sentence:

  When I got home from classes, I found the door ___________.
   

• Choose the best answer for the following sentence:

  I can’t recall _____________ that old movie, but may be I did some years ago.
  
  

• Choose the best answer for the following sentence:

  Is two o'clock this afternoon ____________ for me to pick you up?
   

• I love going by train and I can’t go by car because I got _________.
    

• Choose the best answer for the following sentence:

  The beautiful ship of my ____________ made a good landfall.