Đốt cháy 4,4 gam hỗn hợp X gồm CH₄, C₂H₄, C₃H₆, C₄H₁₀ cần a mol O₂ thu được b mol CO₂ và 7,2 gam H₂O. Giá trị a, b lần lượt là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

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

  Articles which have been bought during the sale cannot exchange.

• Choose the best answer for the following sentence:

  The baby continued ____________________ even after she was picked up.
  
  

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

  Those books should be taken back to the library five days ago.

• Choose the best answer for the following sentence:

  Alan pretended not _________________ hurt when his younger sister bit him.
   

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

  This could have done much more easily by a machine.

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

  A game is divided into quarters ranging from five to eight minutes in long.

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

  The home team wears white caps, the visiting team blue one.

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

  Alike football, a water polo game begins with the ball in the centre of the pool.

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

  At least two players must touch the ball after a free throw before a goal can score.

• Choose the best answer for the following sentence:

  She can't stand __________________ under such terrible conditions.