试题与答案

己知NO2与NaOH溶液的反应为3NO2+2NaOH=2NaNO3+NO+H2O

题型:填空题

题目:

己知NO2与NaOH溶液的反应为3NO2+2NaOH=2NaNO3+NO+H2O,而NO、NO2与NaOH溶液的反应为NO2+NO+2NaOH=2NaNO2+H2O,欲用VL某烧碱溶液将含有nmolNO和mmolNO2的混合气全部吸收,则该烧碱溶液的物质的量浓度至少为________。

答案:

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Here is a 2-way student exchange in action. Fred, 19, spent last year in Germany with George’s family. In turn, George’s son Mike spent a year in Fred’s home in America.
Fred, a lively young man, knew little German when he arrived. But after 2 months of studying, the language became easy for him. School was completely different from what he had expected and it was much harder. Students rose respectfully when the teacher entered the room. They took 14 subjects instead of 6 that were usually taken in the US.
Family life, too, was different. They have to listen to their fathers. All the activities were done with the family rather than individually. Fred found the food to be too simple at first. He also missed having a car.
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German students
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You don’t have to stand up.
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____小题4:
You do their own things individually.
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It is much _____小题6: .
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You pick up some friends in ____小题7:_ .
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在第二审案件的裁判中,下列哪一项表述不违反上诉不加刑原则

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