2008年全国高中学生化学竞赛(重庆赛区预赛)试题.pdf

《2008年全国高中学生化学竞赛(重庆赛区预赛)试题.pdf》由会员分享，可在线阅读，更多相关《2008年全国高中学生化学竞赛(重庆赛区预赛)试题.pdf（9页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、全国高中学生化学竞赛（重庆赛区预赛）试题（高一组）考生须知：竞赛时间 2 小时，迟到超过半小时者不能进考场，开始考试后1 小时内不得离场，考试时间结束时，把试卷（背面朝上）放在桌子上，立即起立撤离考场。试卷装订成册，不得拆散。所有解答必须写在指定的括号或方框内，不能用铅笔及红笔填写。姓名、所属学校必须在首页左侧规定位置，写在其它地方者按废卷论处。允许使用无贮存信息功能的非编程计算器及直尺等文具。可能用到的原子量：H：10 C：12 N：14 O：16 Na：23 P：31 S：32 第卷（选择题，共40 分）第 1 题（单选题，每小题3 分，共 24 分）1-1 夏季奥运会在北京举行，届时要突

2、出“绿色奥运、科技奥运、人文奥运”理念。绿色奥运主要是指（）A保证奥运会期间运动员的人身安全、比赛安全和饮食安全B严禁使用兴奋剂，保证竞赛公平C奥运会的工程建设、资源开发、自然生态符合环境保护和可持续发展思想D奥运场馆建设只能使用天然材料，不能使用合成材料1-2 5 月，太湖水域蓝藻爆发，2 月，湖北又报道某水域爆发蓝藻。保护环境，保护水资源刻不容缓。蓝藻的形成是由于含N、P等元素的废水排入水域，引发蓝藻的疯狂生长。通过定量实验，分析得知某蓝藻的组成为（质量分数）：C35.80%、O 49.50%、P0.87%、H7.37%、N6.31%。则该蓝藻的最简式为（）AC106 H263O110 N

3、16 P BC106 H263 O111 N15 P CC106 H262 O111 N17 P DC105 H262 O110 N14 P 1-3 下列说法正确的是（）漂白粉的有效成分是氯化钙和次氯酸钙；严格执行机动车尾气排放标准有利于防止大气污染。使用二氧化硫增白的食品对人体健康有害。使用氯气对自来水消毒可生成对人体有害的有机氯化物。食品厂产生的含丰富氮、磷营养素的废水可长期排向水库及湖泊以利养鱼。ABCD1-4 测得 HC1O4 H2O结构为 H3O+C1O4。下列叙述最不符合这种结构证据是（）A是极强酸B有强氧化性C遇热分解D有四个相同的键1-5 下列离子方程式错误的是（）ANa2Si

4、O3溶液中滴入盐酸：SiO32+2H+=H2SiO3B漂白粉溶液中通入CO2Ca2+2C1O+CO2+H2O=CaCO3+2H+2C1OC氯气通入NaOH 溶液中：C12：2OH=C1+H2O DSO2被足量的 NaOH溶液吸收：SO2+2OH=SO32+H2O 1-6 下列各组离子在溶液中能大量共存的是（）ANa+、Fe3+、C1、OHB H+、Na+、SO42、CO32CNa+、Mg2+、C1、NO3D K+、H、C1、SO321-7 在通信网中必不可少的材料是化合物半导体。现在最为普及的有两种化合物半导体，一种是镓砷半导体，它用作为便携电话和无线电通信发射微波的零件。另一种化合物半导体由

5、比镓（Ga）多 18 个电子的元素A和与砷同族且电子层比砷原子少一层的元素B 组成，它是作为通信电缆中将光信号转变为电信号的中继器零件。则此化合物的化学式为（）AInP BA1P C GaAs DGaP 1-8 向某化工厂排出的澄清废液中加入BaC12溶液，产生白色沉淀，再加入足量的稀硝酸，沉淀部分溶解并放出能使澄清石灰水变浑浊的气体，下列说法中，正确的是（）废液中一定含有Ag+废液中一定有CO32废液中一定有SO42废液中一定有H2SO4 ABCD第 2 题（每小题有1 或 2 个选项符合题意，每小题4 分，共 16 分）2-1 研究表明，H2O2具有立体结构，两个氢原子像在半展开书本的两页

6、纸上，两页纸面的夹角约有 94，氧原子在书的夹缝上，O H 键与 OO键之间的空间夹角约为97。下列说法不正确的是（）AH2O2分子中既有极性键又有非极性键BH2O2结构中两个H原子的位置不等同CH2O2与 H2O互为同素异形体DH2O2既有氧化性又有还原性2-2 “化学反应不管是一步完成还是分几步完成，其反应热是相同的。”这是著名的盖斯定律。今有 18g 焦炭（假定碳100%）发生不完全燃烧，所得气体中CO占31体积，CO2占32体积。已知)()(21)(2gCOgOsC该反应放热Q1 kJ)()(21)(22gCOgOgCO该反应放热Q2 kJ 若与该 18g 焦炭完全燃烧相比，上述不完全

7、燃烧损失的热量是（）AkJQ121B2Q1kJ CkJQ221DQ2kJ 2-3 为测定碳酸钙的纯度（设含杂质SiO2），学生设计如下实验方案：文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10

8、G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J

9、4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4

10、R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U

11、10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P

12、3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:C

13、H4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4称量样品mg；加足量 c mol/L盐酸 vmL；过滤并取滤液；在滤液中加过量c mol/LNa2CO3溶液 vmL;将

14、步骤中的沉淀过滤、洗涤、干燥，称量为m g。在计算时不需要的数据是（）Ac、v Bc、vC m Dm 2-4 某化工厂的工业废水中含H2SO4的质量分数为1%，采用边排放边中和的方法将它处理，使之基本呈中性，处理方法如图所示：若处理后的废水呈中性，则所用NaOH 溶液中溶质的质量分数为（）A0.5%B1%C 2%D4%第卷（非选择题，共60 分）第 3 题（10 分）取一定量的蔗糖（分子式C12H12O11）放入烧杯中，加入几滴水，搅拦均匀，再加入一定量的浓硫酸，迅速搅拦。回答实验有关问题。3-1 浓硫酸在反应中起哪些作用？3-2 实验中出现黑色物质，放出气体有刺激性，气体中还有CO2，写出有

15、关反应的化学方程式；3-3 实验中形成的炭往疏松多孔，是如何造成的？3-4 实验中为什么要先加几滴水？文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编

16、码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4

17、 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5

18、 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文

19、档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9

20、U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5

21、T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4第 4 题（10 分）通常以石砂为原料制取单质硅。回答下列有关问题：4-1 写出石英砂与焦炭在高温下反应制粗硅的化学方程式，得到的是粗硅，可能的两个原因是什么？化

22、学反应方程式：原因：4-2 将粗硅与氯气在加热条件下反应，再将其产物在高温下与氢气反应即得到纯硅，这是由粗硅制纯硅的常用方法之一。写出有关反应的化学方程式：4-3 上述由石英砂制纯硅的过程中，可能污染环境的物质有（写出两种）。4-4 在半导体工业中有这样一句行话：“从沙滩到用户。”举出与之关系极大、用户极广的两件产品。第 5 题（10 分）A、B、C是三种中学化学常见的固体化合物，焰色反应均显黄色。已知实验事实如下：A 与 B 按 1：1 的物质的量相混合，溶于足量的水，得到的溶液只含一种溶质。在该溶液中通入足量的CO2，则得到溶质为B的溶液。A与 C按任意比混合，溶于足量的水，得到的溶液也只

23、含一种溶质，并有无色、无气味的气体 D放出。加热 B与 C的混合物，放出的气体中含有D。文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7

24、H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10

25、G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J

26、4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4

27、R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U

28、10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P

29、3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4据此回答下列问题：5-1 A、B、C的化学式依次是：（）5-2 写出 A与 B在溶液中反应的离子方程式：5-3 写也实验中溶液通过足量的CO2时所发生反应的离子方程式；5-4

30、写出 B与 C按物质的量1：1 在密闭容器内混合加热、相互完全反应时的化学方程式；第 6 题（10 分）A、B、C、D四种短周期元素，原子序数依次增大。B、C、D同周期，C是本周期原子半径最小的元素；A、C 同主族，二者可形成两种常见的化合物，其中一种是常见的严重的大气污染物；B的最外层电子数比其最内层电子数少1。试回答下列问题：6-1 B和 D形成的化合物是离子化合物，请画出其电子式：（）。6-2 写出 D的元素符号及实验室制取D的单质的化学方程式。D的元素符号：化学方程式：6-3 D与碘可以相互化合生成“互化物”ID，其化学性质跟D单质相似。ID 中 I 的化合价是多少？写出ID 与水反应

31、的化学方程式。化合价是：化学方程式：6-4 写出化合物B2A2的两种用途并说明理由？第 7 题（10 分）碘酸钾在酸性条件下是一种强氮化剂，与氢碘酸、二氧化硫等还原性物质反应时被还原为单质碘。碘酸钾在常温下稳定，但加热至560开始分解。工业生产碘文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A

32、9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H

33、5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1

34、E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H

35、7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G

36、6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4

37、J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4酸钾的流程如下图所

38、示。中的反应为：6I2+11KC1O3+3H2O=6KH（IO3）2+5KC1+3C127-1 步骤中，不能用HI 的原因是：7-2 有人认为中由不碘单质制出了氯单质，说明碘单质的氧化性强于氯气，你认为是否正确？为什么？7-3 实验中涉及两次过滤，在实验室进行过滤时用到的玻璃仪器有：7-4 步骤用氢氧化钾调节溶液有pH，反应的化学方程式为：7-5 碳酸钾的溶解度如下：温度/0 10 20 40 60 80 KIO3g/1100g 水4.60 6.27 8.08 12.6 18.3 24.8 步骤 11 得到碘酸钠晶体，你的建议方法是：文档编码:CH4R7H7A9U4 HA4U10G6H5T5

39、ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档

40、编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U

41、4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T

42、5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4

43、文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A

44、9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H

45、5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4第 8 题（10 分）1.287g 碳酸晶体样品A与过量的盐酸反应放出100.8mL 气体（标准状况）。取另一种碳酸钠晶体样品B0.696g，用 10mL的 1mol/L H2SO4溶解，全部溶解后，逐滴滴入 2mol/LNaOH溶液，至溶液呈中性时，用去NaOH溶液 7mL。通过计算确定：8-1 碳酸钠晶体A的化学式。8

46、-2 两种碳酸钠晶体样品的组成是否相同？文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P

47、3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:C

48、H4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA

49、4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF

50、5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码:CH4R7H7A9U4 HA4U10G6H5T5 ZF5P3J4J1E4文档编码