Cho các phản ứng:

(a) Fe3O4 + HNO3 dư;

(b) NO2 + NaOH dư;

(c) Ca(HCO3)2 + NaOH dư;

(d) CO2 + Ca(OH)2 dư.

(e) Cl2 + KOH dư;

(g) Cu + Fe2(SO4)3 dư; Số phản ứng thu được hỗn hợp 2 muối 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:

  The quality of the shoes produced in this factory are very good.
  
  

• Choose a word that has different stress pattern:

  obliged           pleasure                grateful              rubbish

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

  policeman / William / live / next door.
  
  

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

  knife / robber/ use / kill / man / on / table.
  
  

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

  community                literacy              opportunity           apply

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

  houses/ situate / city centre / expensive / those / suburb.
  
  

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

  teenager                   game               organize                 agree

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

  special                course                local              discover

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

  shoes / mother / buy / too small / wear.
  
  

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

  police / asking / man / house / break into / last night.