(15分)现有实验室制取气体的部分装置,请结合所学化学知识,回答有关问题: (

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问题:

(15分)现有实验室制取气体的部分装置,请结合所学化学知识,回答有关问题:

(1)请写出图中标有字母的仪器名称:a为          、b为         

(2)实验室用高锰酸钾制取氧气,为了防止固体粉末随气流吹出而堵塞导管,装置A还需要做的一点改动是                     

(3)实验室用过氧化氢溶液制取氧气,应选择的发生装置是       ,反应的化学    方程式为                            ,该反应的基本类型是        反应。若用C装置收集氧气,须等                                时开始收集。

(4)实验室制取二氧化碳,常用的发生装置是    ,收集装置是    。若要收集到干燥的二氧化碳气体,应将发生装置与F装置的      (填“m”或“n”)端相连;F装置中的浓硫酸若换成             ,则可用来检验生成的二氧化碳。

考点:氧气的制取和收集氢气的制取和收集二氧化碳的制取和收集实验室制取和收集气体的思路
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Read and judge.

                                                                   Spear and Shield

      A man is selling his spear and loudly, "come and look, The best spear and the best shield in the

world."

      Some people get together. He is very happy. He puts up his spear and says, 66Look at my spear.

It's very sharp. It can pierce through any shield." And then he puts up his shield, Look at my shield.

It's very hard. It can stop any spear. "

      And then someone asks him. Then what will happen, if you pierce your shield with your spear?"

The man is very embarrassed and says nothing.

1. The man is selling his spear and shield.                    Yes □   No □

2. Some people get together and the man is sad.               Yes□    No口

3. Someone asks him, "How do you feel ?"              Yes□    No□

4. The man is very angry at last.                          Yes□    No□    

题型:填空题

给加粗的字选择正确的解释。    

:①生长 ②不熟悉 ③使柴、煤等燃烧 ④产生、发生 ⑤学生 ⑥生存、生活 

       ⑦(食物)没有煮过或煮的不够

这团红红的火,带来了的快乐。     (     )

吃不干净的食物容易病。     (     )

之间的感情,是最无私的感情。     (     )

我们刚到这个地方,人地不熟的。     (     )

探险队员们打算动手火烧水做饭。     (     )

虽然才种下不久,这棵树苗很快就根发芽了。     (     )

题型:填空题

气体灭火系统的设计温度应采用270C。

题型:填空题

药品说明书应有的内容包括

A.药理毒理

B.药物相互作用

C.药代动力学

D.结构式

E.药品名称

题型:填空题

相互对称的树种种植方式称对植。

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