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【简答题】
（12分） 由短周期元素组成的10种物质A～J间有下图所示的转化关系。 已知A、B为同周期相邻元素的单质，其余均为化合物；通常状况下A为固体，B、D为气体，F为液体；A和G的浓溶液加热时反应生成D和F；J在光照时有I生成。 试回答： (1)写出下列物质的化学式：B_________，E__________，F的结构式__________。 (2)反应①的离子方程式为______________________________； (3)足量铁与G的热的浓溶液反应所得气体是___；铁与B反应的化学方程式__________。 (4)C是一种重要的化工产品，为易挥发的樱桃红色液体。若反应②中生成的G、A和I的物质的量之比为1︰2︰6，则C的电子式为_____，反应②的化学方程式为_____。
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举一反三
【单选题】Professor Waters
A.
knows well how to teach English.
B.
is a new hand in writing books.
C.
writes books in different fields.(领域)
D.
is very good at speaking English.
【单选题】Professor Waters
A.
knows well how to teach English.
B.
is a new hand in writing books.
C.
writes books in different fields.
D.
is very good at speaking English.
【单选题】Professor Waters has taught English
A.
to students from many felds.
B.
in many different countries.
C.
to experienced teachers in China.
D.
for a number of years in England.
【单选题】Professor Waters has taught English
A.
a. to students from many fields.
B.
in many different countries.
C.
to experienced teachers in China.
D.
for a number of years in England.
【单选题】Professor Waters has taught English
A.
to students from many fields.
B.
in many differents countries.
C.
to experienced teachers in China.
D.
for a number of years in England.
【判断题】[色谱分析法中级第50题]高效液相色谱分析中,选择流动相的一般原则为纯度高、黏度低、毒性小、对样品溶解度高以及对检测器来说无响应或响应不灵敏。()
A.
正确
B.
错误
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