Đốt cháy hoàn toàn hiđrocacbon X thu được khí CO₂ và hơi nước theo tỉ lệ thể tích 1,75 : 1 (đo ở cùng điều kiện). Biết M_X < 120 đvC và X có t:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose one sentence that has the different meaning to the root one:

  She likes sports. She likes reading.
  
  

• Choose one sentence that has the different meaning to the root one:

  She met Pierre in 1894 and in the following year they were married.
  
  

• Choose the best answer for the following sentence:

  By the time the boss returned, _______________.
  
  

• Choose the best answer for the following sentence:

  ___________ Lan had turned off the light.
  
  

• Choose the best answer for the following sentence:

  Kim said that ____________.
  
  

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

  Population density in the Red River Delta is by now more densely populated region in

  Vietnam with 1,136 people per square kilometer.

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

  The twentieth century saw the largest total century population increase ever. At the

  beginning there were 1.6 billions people and at the end of the century there were 6.1.

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

  Vietnamese people try to pay off their debts in advance so as to they can be debt-free on Tet.
  
  

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

  Many cultures use fireworks and other forms of noise to make part of the celebration of

  New Year Eve.

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

  Many customs in Tet come from traditions which have passed from generation to generation

  and have become standards.