Khi cho lượng dư dung dịch KOH vào ống nghiệm đựng dung dịch kali đicromat, dung dịch trong ống nghiệm:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  When you got lost in the forest you _________________________ very frightened.

   

• Choose the best answer for the following sentence:

  If at any point John feels himself _________________________ tense, he makes a conscious effort to relax.

   

• Choose the correct sentence which is built from the words and phrases given:

  she / admitted / too / fast / drive / through / the / town /.
  
  

• Choose the best answer for the following sentence:

  I ________ him these details, so he __________ some research on his own.

   

• Choose the best answer for the following sentence:

      She _______ a sort of breakdown some years ago, and since then she ______ very shy.

   

• Choose the best answer for the following sentence:

  When the police __________ to the scene of the accident, both drivers __________ away.

   

• Choose the best answer for the following sentence:

  When I _________ home yesterday morning, my son ________ and my wife ___________ to work.

   

• Choose the correct sentence which is built from the words and phrases given:

   Lan / apologize / come / for / late / meeting /.
  
  

• Choose one sentence that has the same meaning as the root one:

  John is probably studying at the moment.

   

• Choose one sentence that has the same meaning as the root one:

  He was possibly away as no one answered the phone.