某化学小组设计如图实验装置 (1)若装置A中的固体药品为KClO3,则写出离子

题型:实验题

问题:

某化学小组设计如图实验装置

(1)若装置A中的固体药品为KClO3,则写出离子方程式             

(2)装置B既能除去氯气中的氯化氢,还能检测实验过程中装置C是否发生堵塞。若C中发生堵塞,B中将观察到的现象是        

(3)装置C的作用是验证氯气是否具有漂白性,l处是湿润的有色布条,则Ⅱ、Ⅲ处应加入的物质分别是             

(4)设计装置D、E的目的是比较氯、溴、碘的非金属性。请简述能说明氯、溴、碘非金属性强弱的实验操作及现象             。(夹持装置略去)制备Cl2并探究氯气的相关性质:

考点:氯气氯气用于自来水消毒杀菌氯的其他化合物(高氯酸、氯化物、氯酸盐,盐酸等)漂白粉、漂粉精
题型:实验题

A little boy invited his mother to attend his school’s first teacher-parent meeting. To the little boy’s (1) , she said she would go. This (2) be the first time that his classmates and teacher (3) his mother and he felt (4) of her appearance. Although she was a beautiful woman, there was a severe sear (疤痕) that (5) nearly the entire right side of her face. The boy never wanted to (6) why or how she got the sear.At the meeting, the people were (7) by the kindness and natural beauty of his mother (8) the sear, but the little boy was still embarrassed (尴尬) and (9) himself from everyone. He did, however, get within (10) of a conversation between his mother and his teacher.The teacher asked (11) ," How did you get the scar on your face"The mother replied, " (12) my son was a baby, he was in a room that caught fire. Everyone was (13) afraid to go in because the fire was (14) , so I went in. As I was running toward his bed, I saw a long piece of wood coming down and I placed myself over him trying to protect him. I was knocked (15) but fortunately, a fireman came in and saved both of us. " She (16) the burned side of her face. "This scar will be (17) , but to this day, I have never (18) what I did. "At this moment, the little boy came out running toward his mother with tears in his eyes. He held her in his arms and felt a great (19) of the sacrifice (牺牲) that his mother had made for him. He held her hand (20) for the rest of the day.

第(11)空应选择()

A.carefully     

B.seriously    

C.nervously    

D.anxiously

题型:实验题

公安机关是人民民主专政的重要工具,这是公安机关的阶级属性。其含义包括( )。

A.公安机关具有鲜明的阶级性

B.公安机关在国家 * * 中占据重要地位,公安机关是国家机器的重要组成部分

C.公安机关是国家意志的忠实执行者

D.它表明了公安机关的阶级本质,是公安机关性质的核心内容和本质特征

题型:实验题

UNC是局域网服务器中的目标文件的地址,以()开始。

题型:实验题

有关前列腺癌的诊断,下列哪项最准确()

A.经直肠B超

B.MRI

C.PSA(前列腺特异抗原)

D.穿刺活检

E.CT

题型:实验题

可以申请公示催告的申请人应为可转让背书的______。( )

A.票据权利人
B.票据占有人
C.最后持有人
D.被背书人

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