您所在的当前位置：高中化学试题 >

氯及其化合物

> 下列画有横线的物质在反应中不能完全被消耗的是（） A．将1molCu置于含2molH2SO4的浓硫酸中加热 B．将含少量CO2的CO气体通入盛有足量Na2O2的密闭容器中，并不断用电火花引燃 C．将1 mol Mg置于11.2 L（标准状况）空气中在高温下反应 D．在强光持续照射下，向过量的Ca(ClO)2悬浊液中通入少量CO2

问题：

发布时间：2024-09-11

下列画有横线的物质在反应中不能完全被消耗的是（）

A．将1molCu置于含2molH₂SO₄的浓硫酸中加热

B．将含少量CO₂的CO气体通入盛有足量Na₂O₂的密闭容器中，并不断用电火花引燃

C．将1 mol Mg置于11.2 L（标准状况）空气中在高温下反应

D．在强光持续照射下，向过量的Ca(ClO)₂悬浊液中通入少量CO₂

参考答案：

提问用户：Pf***lkw

可能感兴趣的题目：

1 水是人类生存必不可少的一种资源，但地球上的陆地淡水只占总水世的2.53%．如图是地球上各大洲可利用的淡水资源和人口数量各占世界总量的百分比示意图，可见 A.亚洲水资源人均拥有量最少 B.全球水资源的分布是均衡的 C.水是循环的，没有必要担心水资源不足 D.亚洲水资源总量最多，不存在水资源缺乏问题
2 _________I went to the US,I visited many cities. A．First time B．For the first time C．The first time D．By the first time
3 2007年10月25日17时55分，北京航天飞行控制中心对“嫦娥一号”卫星实施首次变轨控制并获得成功。右图为“嫦娥一号”某次在近地点A由轨道1变轨为轨道2的示意图，其中B、C分别为两个轨道的远地点。关于上述变轨过程及“嫦娥一号”在两个轨道上运动的情况，下列说法中正确的是 A.“嫦娥一号”在轨道1的A点处应点火加速 B.“嫦娥一号”在轨道1的A点处的速度比在轨道2的A 点处的速度大 C.“嫦娥一号”在轨道1的B点处的加速度比在轨道2的C点处的加速度大 D.“嫦娥一号”在轨道1的B点处的机械能比在轨道2的C点处的机械能大
4 对于弱酸，在一定温度下达到电离平衡时，各微粒的浓度存在一种定量的关系。若25 ℃时，有 HA H +＋A -，则K= 。式中：K为电离平衡常数，只与温度有关，c为各微粒的平衡浓度。下表是几种常见弱酸的电离平衡常数(25 ℃) 回答下列各题： (1)K只与温度有关，当温度升高时，K值__________(填“增大”“减小”或“不变”)。 (2)在温度相同时，各弱酸的K值不同，那么K值的大小与酸性的相对强弱关系是_______________________________。 (3)若把CH 3COOH、H 2CO 3、HCO 3 -、H 2S、HS -、H 3PO 4、H 2PO 4 -、HPO 4 2-都看做是酸，其中酸性最强的是__________，最弱的是__________。 (4)多元弱酸是分步电离的，每一步都有相应的电离平衡常数。对于同一种多元弱酸的K1、K2、K3之间存在着数量上的规律，此规律是__________，产生此规律的原因是___________________________。
5 阅读理解。 The first English week at our school started on May 4th, 2009. The whole school was filled with an English learning atmosphere. A series of activities was held. There were handwriting activities, story writing, English songs, role playing in English, and so on, all the teachers and students were very happy. They spoke English, sang English songs and enjoyed all the activities. Handwriting was for the students in lower grades. Although most of them couldn"t write so well, they were all very careful about it. In the show window, there were a lot of colorful handwritten papers. They copied some articles from books or newspapers. And then they decorated them with pictures in different colors, and some even put their own photos on them. How cute and lovely they looked! Story writing was for students in Grade 7 and Grade 8. These students are always fond of cartoons, so they got interested in this activity. Reading the stories they made up, all the visitors couldn"t help speaking highly of them. The most important event was the English show on the last day. The students and teachers presented(上演) a lot of English songs and English operas. Each program won storms of applause. One week is not very long, but all the students and teachers learned a lot. Just as the headmaster said,"It is a helpful week. It will certainly lead us to enjoy and learn more from our English studies." 1. In this passage, the English week is described as ______. A. surprising B. boring C. enjoyable D. serious 2. Which of the following is Not true? A. All the students took part in the handwriting contest. B. The story writing contest was for students in Grade 7 and Grade 8. C. The English show was the most important event. D. Teachers also took part in the English week. 3. What does the underlined word "applause" probably mean? A. Noise B. Cheer C. Sound D. Music 4. What does the writer probably want to tell us at the end of the passage? A. The activities are a good way to learn English. B. Students usually don"t like English. C. The activities last longer. D. Learning English in the classroom is invaluable.
6 常温下，下列各组溶液中的离子一定能大量共存的是 [ ] A．中性溶液中：K +、Al 3+、Cl -、HCO 3 - B．强碱性溶液中：ClO -、Ca 2+、Mg 2+、NO 3 - C．pH=2的溶液中：Fe 2+、SO 4 2-、K +、NO 3 - D．酸性溶液中：NH 4 +、Cl -、Na +、SO 4 2-
7 欧盟和我国合作的“伽利略”全球定位系统的空间部分由平均分布在三个轨道面上的30颗轨道卫星组成，每个轨道平面上等间距部署10颗卫星，从而实现高精度的导航定位，现假设“伽利略”系统中每颗卫星均绕地心O做匀速圆周运动，一个轨道平面上某时刻10颗卫星所在位置分布如图所示。若卫星均顺时针运行，地球表面处的重力加速度为g，不计卫星间的相互作用力。则以下判断中正确的是 A．这些卫星的运行速度均小于7.9km/s B．这些卫星的加速度大小均小于g C．这些卫星处于完全失重状态 D．若已知这些卫星的周期和轨道半径，可求出卫星的质量
8 已知 a =(2+λ，1)， b =(3，λ)，若＜ a ， b ＞为钝角，则λ的取值范围是______．
9 完形填空。 I always got a flower on my suit on Sunday service, I really didn"t think much of it. One Sunday a little boy 1 me when I was leaving. He walked right up to me and said, "What are you going to 2 with your flower?" At first I did not know 3 he was talking about, but then I understood. I said, "Do you mean this?" as I pointed to the rose 4 to my coat. He said, "Yes sir. I would use it 5 you are just going to throw it away." At this point I 6 and gladly told him that he could have my flower, casually (顺便) 7 him what he was going to do with it. The little boy said,"Sir, I am going to 8 it to my granny. My mother and father got divorced two years ago, my grandmother 9 me and so I want to give that 10 flower to her." When he finished I could 11 speak. And my eyes were filled with tears and I knew I had been 12 in the depth of my soul. I 13 up and unpinned my flower. With the flower in my 14 , I looked at the boy and said, "Son you 15 have this flower because it"s not enough. If you 16 in front of the pulpit (教堂讲坛), you"ll see a big bouquet (束) of flowers. Please take those 17 to your granny because she deserves (应得) the very 18 ." The boy made one last 19 . He said, "What a 20 day! I asked for one flower but got a beautiful bouquet. I"ll always cherish (珍惜) it." ( )1. A. surrounded(围绕) ( )2. A. do ( )3. A. why ( )4. A. tied ( )5. A. though ( )6. A. smiled ( )7. A. telling ( )8. A. give ( )9. A. looks forward to ( )10. A. ugly ( )11. A. never ( )12. A. caught ( )13. A. reached ( )14. A. heart ( )15. A. must ( )16. A. look ( )17. A. words ( )18. A. worst ( )19. A. choice ( )20. A. wonderful B. appreciated B. change B. who B. pinned B. unless B. shouted B. asking B. fetch B. gets away from B. expensive B. hardly B. lost B. climbed B. hand B. can B. lie B. pulpits B. best B. statement(陈述) B. terrible C. approached C. talk C. how C. aimed C. if C. cried C. testing C. pay C. catches up with C. old C. even C. buried C. gathered C. soul C. can’t C. wait C. flowers C. little C. decision C. formal D. walked D. share D. what D. stuck D. until D. jumped D. examining D. have D. takes care of D. pretty D. still D. touched D. brought D. eye D. should D. run D. gifts D. better D. introduction D. peaceful
10 向存在大量Na +、Cl -的溶液中通入足量的NH 3后，该溶液中还可能大量存在的离于组是 [ ] A．K +、Br -、CO 3 2- B．Al 3+、H +、MnO 4 - C．NH 4 +、Fe 3+、SO 4 2- D．Ag +、Cu 2+、NO 3 -