Cho a mol NaAlO2 tác dụng với dung dịch chứa b mol HCl, để sau phản ứng thu được kết tủa thì             

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:

  A species that faces overexploitation is one that may become severely endangered or even extinct due to the rate in that the species is being used.

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

  We study hard in high school in order to entrance a good university.

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

  The Europeans and Asians are completely different with each other.

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

  I have a problem to memorizing names of people.

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

  I spent most of my time in the train read my favorite book.

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

  hour                  honorable                     vehicles                         homeless 

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

  ghost                       most                      post                      lost 

• Choose the word whose stress is on the second syllable:

  remote                  motive                       justice                     mountain

• Choose the best answer for the following sentence:

  She ___________ notice of his behavior towards her.

• Choose the best answer for the following sentence:

  "_______________ care of that necklace - it’s very valuable.”