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问题 选择题

已知450℃时，反应 H2(g) + I2(g) 2HI(g)的K=50，由此推测450℃时，反应2HI(g) H2(g) + I2(g) 的化学平衡常数为 [ ]

A． 50

B． 0.02

C． 100

D． 无法确定

答案

答案：B

听力题

单词拼写。(每题0.5分，共5分)

1.      Sometimes I wonder how _________（相关的） chemistry is to these students.

2.      Please raise your hand if you are in f________ of the new plan.

3.      It was such a __________( 特权 ) to have spend a day with Tombe’s family.

4.      I thought my explanation would calm him down, but it turned out to have the o_______ effect.

5.      He p________ a beautiful birthday gift for his girlfriend in Xinhua Shopping Center last month.

6.      The sales team is working hard to achieve the _________( 目标 ) of selling 5,000 books this month.

7.      He told us that he wouldn’t have done the job well without the __________ ( 鼓励 ) of his wife.

8.      It wasn’t wise to r_________ from your job during such a crisis.

9.      What a sweet victory to be __________ ( 羡慕 ) by those women!

10.  That the famous magazine Reader’s Digest has d_______ it will close down comes as a shock to all of us.
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选择题

用绿豆发豆芽，1千克绿豆可长出4-5千克绿豆芽．在这个过程中，有机物含量（　　）

A．增多

B．减少

C．不变

D．A、B、C都不对
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