下列反应的离子方程式书写正确的是 A氯气与水反应:Cl2+H2O=2H++Cl-

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问题选择题

下列反应的离子方程式书写正确的是

A氯气与水反应:Cl₂+H₂O=2H⁺+Cl^-+ClO^-

B工业上用过量氨水吸收二氧化硫:NH₃+SO₂+H₂O=NH₄⁺+HSO₃^-

C氯气与氢氧化钠溶液反应:Cl₂+2OH^-=Cl^-+ClO^-+H₂O

D硝酸铵与氢氧化钠浓溶液反应: NH₄⁺+OH^-=NH₃·H₂O

答案

答案：C

阅读理解

阅读短文，判断正(T)误(F)。

Look, this is a picture of a big farm. There are seventy sheep, sixty ducks and one hundred hens. There are

many fresh vegetables, too. The potatoes are big. The tomatoes are red. The carrots and onions are fresh.

( ) 1. The farm is small.

( ) 2. There are many animals and vegetables on the farm.

( ) 3. There are forty ducks.

( ) 4. The potatoes are red.

( ) 5. The onions are fresh.

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