2022年中考复习化学专题检测试题第18讲盐酸硫酸 .pdf

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1、第 18 讲盐酸硫酸1某市各县区进行初中理化实验技能考查，在化学实验中小芳向一无色溶液中滴加紫色石蕊溶液，溶液呈蓝色，下列结论正确的是()。A该溶液显中性B该溶液的pH 小于 7 C该溶液能使无色酚酞溶液变红色D该溶液是一种酸溶液2(2010 年广东揭阳)下列各组离子在溶液中一定能大量共存的是()。AH、Cl、OHBH、SO24、CO23CBa2、H、SO24DCu2、Na、NO33下列各组物质能在pH1 的无色溶液中大量共存的是()。AK2SO4、Ba(OH)2、KCl BCu(NO3)2、NaCl、KNO3CNa2CO3、KNO3、NH4Cl DMgSO4、NaNO3、KCl 4(2012

2、 年浙江杭州)实验室发现一瓶标签脱落的固体试剂，小王分别取少量的该固体进行了下列实验。根据实验现象，该固体最可能是()。实验步骤实验现象检测水中加入固体前后液体的pH 固体不溶解，液体的pH 几乎没变化检测盐酸中加入固体前后溶液的pH 固体溶解，无气体放出，溶液pH 增大固体灼热状态下，通入纯净CO 固体质量减轻，尾气中只检测到CO 与 CO2A.金属单质B碱C盐D金属氧化物5以下化学药品的保存或实验操作正确的是()。6 下图中 X、Y、Z 表示的是水、石灰水、稀盐酸的近似pH。下列判断错误的是()。AX 是稀盐酸BY 是水CZ 是石灰水D无法确定X、Y、Z 7(2012 年浙江宁波)小科看到

3、妈妈炒的一盘紫色高丽菜(一种紫色的卷心菜)的菜汁呈紫色，后来因为掺了醋变成了红色，在洗盘子时遇到碱性洗涤剂又变成黄绿色。下列也能使紫色高丽菜汁呈现黄绿色的物质是()。A柠檬汁B雪碧C食盐水D肥皂水8下列对实验意外事故的处理错误的是()。A若不慎将燃着的酒精灯碰倒，洒出的酒精在桌上燃烧，应立刻用湿抹布扑盖B若不慎将烧碱溶液沾到皮肤上，要用较多的水冲洗，再涂上硼酸溶液C若不慎将腐蚀性药液溅入眼中，要先用手揉眼睛，再立即用水冲洗D若不慎将浓硫酸沾到皮肤或衣服上，应立即用大量水冲洗，然后涂上3%5%的碳酸氢钠溶液9(2012 年山东济宁)硫酸是化学工业的重要产品和原料，也是我们实验室常用常备的化学试剂

4、。某同学为鉴定某一无色溶液是否为稀硫酸，进行了以下实验：取少量溶液于试管中，滴加石蕊溶液，溶液变红，表明溶液中一定有氢离子；用玻璃棒蘸取少量溶液，滴到pH 试纸上，测得pH0，表明溶液呈酸性；文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10

5、Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4

6、文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:C

7、B8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4

8、P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 H

9、R6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N

10、6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8

11、ZR2L10Q9O6F4取少量溶液于试管中，滴加氯化钡溶液，振荡，有白色沉淀生成，证明溶液中一定有硫酸根离子；取少量溶液于试管中，滴加硝酸钡溶液，振荡，有白色沉淀生成，滴加稀硝酸，沉淀不溶解证明溶液中一定有硫酸根离子。若确定该溶液为稀硫酸，能达到目的实验组合是()。ABCD10盐酸、稀硫酸在水溶液中都能产生H，故有许多共同的性质。下列有关叙述正确的是()。A打开盛有浓盐酸和浓硫酸的试剂瓶瓶塞，在瓶口都有白雾B稀盐酸和稀硫酸都可用于除铁锈C浓盐酸、浓硫酸都可用来干燥氧气D在稀盐酸、稀硫酸中滴加氢氧化钡溶液，都有白色沉淀11(2012 年山东潍坊)人的胃液里含有适量的盐酸，下图是某种抗酸药(治疗胃

12、酸过多的药物)的说明书的部分内容：说明书主要成分：碳酸氢钠、淀粉每片含量：150 mg碳酸氢钠适 应 症：用于缓解胃病用法：嚼碎服用注意事项：胃溃疡患者慎用(1)药物的用法要求“嚼碎服用”，其原因是_(2)说明书中注明“胃溃疡患者慎用”，其原因是(用化学方程式说明)：_。12硫酸和盐酸既是实验室常用的试剂，也是重要的化工原料。它们既有相似之处，又有不同之点。(1)它们水溶液的pH 都_7(填“大于”、“小于”或“等于”)。(2)它 们 都 能 除 铁 锈，写 出 盐 酸 与 铁 锈 的 主 要 成 分 反 应 的 化 学 方 程 式：_。(3)它们都能与碱反应生成盐和水，该类反应叫_反应。(4

13、)打开两瓶分别盛有浓硫酸和浓盐酸的试剂瓶，瓶口出现白雾的是_。(5)请写出把硫酸转变为盐酸的化学方程式：_ 13根据稀硫酸的化学性质分析，下列实验方案中，正确的是()。A用 BaCl2溶液除去废水中的稀硫酸使其呈中性B用稀硫酸和NaOH 区分 NH4NO3、KNO3和 K2CO3C用 Ba(OH)2溶液区分MgCl2溶液和稀硫酸D用稀硫酸与Fe2O3反应制取 FeSO4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8

14、ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10

15、Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4

16、文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:C

17、B8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4

18、P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 H

19、R6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N

20、6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F414(2012 年山东烟台)电影黄金大劫案上映后，里面用“王水”(浓盐酸与浓硝酸的混合液)溶解黄金的情节引起了广泛的热议。黄金溶解在“王水”中形成HAuCl4(四氯合金酸)，没有氢气产生。根据以上信息，下列有关说法正确的是()。“王水”溶解黄金是化学变化；金比氢活泼；HAuCl4中 Au 的化合价为3；可以将 pH 试纸伸入“王水”中测其酸碱度；“王水”可以用铁质容器盛装。ABCD15同学们用

21、Na2CO3溶液和浓盐酸研究简易灭火器的反应原理时，对废液成分进行探究。【推理假设】上述两种物质发生反应的化学方程式为：_。由此推测出废液中一定有NaCl，可能有 Na2CO3或盐酸。【实验探究】(1)确定废液中是否含有盐酸。选择试剂：根据盐酸的化学性质，同学们选用了如右图所示的五种物质，其中物质X是酸碱指示剂中的_溶液。实验验证：某同学向废液中加入少量的镁粉，观察到 _，确定废液中一定没有盐酸。(2)确定废液中是否含有Na2CO3。某同学选用 _测出废液的pH 10，确定废液中一定含有Na2CO3。(3)处理废液，回收利用。欲从废液中得到纯净的NaCl，请完成如下实验方案设计。方案加入试剂分

22、离方法方案评价适量 Ca(NO3)2溶液过滤、蒸发结晶不可行，理由是_ 过量的 _ 蒸发结晶可行16.(2012 年江苏泰州)硫酸是常见的酸，也是常用的化工原料。由于浓度不同，浓硫酸与稀硫酸在性质上存在较大差异，如浓硫酸具有脱水性、吸水性和强腐蚀性等。某课外兴趣小组为了探究浓硫酸的某些特性做了如下一些实验。请结合有关实验，按要求回答下列问题。(1)用玻璃棒蘸取少量浓硫酸在滤纸上写字，过一会儿后观察，字迹显黑色，这主要是由于浓硫酸具有_性，使纸中的纤维素炭化的缘故；在洗气瓶中盛放浓硫酸，除去氢气或氧气中的水分，是利用其_性。文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10

23、Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4

24、文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:C

25、B8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4

26、P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 H

27、R6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N

28、6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8

29、ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4(2)探究浓硫酸的吸水性。兴趣小组把98%的硫酸 10 mL 和 63.3%的硫酸(用 10 mL 98%的硫酸与10 mL 水配成)约 20 mL 分别放入两个相同的大表面皿中，称量、观察、记录、分析。根据室温环境下得到的实验数据绘成的曲

30、线如下图：稀释浓硫酸时，应将_缓缓地注入盛有_的烧杯中，并不断搅拌。由上图曲线你能得到的实验结论有哪些？(写两点)_；_。(3)探究浓硫酸能否使铁钝化(钝化是指在表面形成氧化膜保护层，使内层金属不再发生变化)。可选用的实验药品有相同铁片若干、浓硫酸、稀硫酸、硫酸铜溶液等。实验仪器任选。兴趣小组已经完成下表实验和，请你帮他们将实验报告补充完整。方案实验假设实验方案实验现象与结论能发生钝化取一铁片先插入浓硫酸中，一段时间后取出，再插入硫酸铜溶液中无明显变化，假设成立能发生钝化取两片相同的铁片，一片放入浓硫酸中，一段时间后取出，与另一片同时放入硫酸铜溶液中_ _，假设成立你认为方案与方案相比，方案的

31、优点是_ 请你选用提供的药品再设计一个实验，简述实验方案：_ 某同学将一铁片插入盛有98%的浓硫酸的试管中，无明显变化，再给试管加热一段时间后，发现溶液变色并有刺激性气味气体产生，此现象说明_ 17(2012 年广西百色)化学小组同学对酸的性质很感兴趣，向老师提出了研究硝酸性质的建议。老师高兴地答应了，并带领同学们进行了硝酸性质的实验探究。【实验设计】(1)将石蕊溶液滴入稀硝酸中，预计石蕊溶液由紫色变为_色。(2)将锌片投入稀硝酸中，预计将产生H2，其名称为 _。【实验验证】文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 H

32、R6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N

33、6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8

34、ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10

35、Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4

36、文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:C

37、B8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4

38、P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4同学们按上述设计做了实验，却发现石蕊变色一会儿后即褪去，锌片投入稀硝酸中后，溶液中冒出气泡，产生无色气体A，在试管口气体A 即变成红棕色且有刺激性气味的气体B。【提出问题】(1)石蕊溶液变色后为何会褪色？(2)上述产生的无色气体是什么？硝酸具有哪些特性？【查阅资料】看到如此异常的现象，在

39、老师的指导下，同学们上网查到了下列资料：(1)硝酸可与Zn、Cu 等多种金属反应，生成相应的硝酸盐，但不生成H2。(2)含氮元素的某些气态物质的物理性质。NH3N2NO NO2颜色无色无色无色红棕色溶解性极易溶于水不溶于水不溶于水可溶于水或硝酸【猜想与分析】(1)小明同学认为石蕊变色后又褪色的原因是由于试管不干净，含有其他杂质造成的，要证明小明的观点，应进行的操作是_。(2)大家一致认同红棕色气体B 是 NO2，但对于无色气体A 及变化的原因有不同的看法：小丽同学认为A 是 NH3，但遭到大家的一致反对，原因是_；小强同学认为A 是 N2，也遭到大家的一致反对，原因是_；经讨论，最终大家获得了

40、A 是 NO 的共识。NO 遇氧气变成NO2的化学方程式为：_。【实验探究】小红同学对硝酸能与Cu 反应很感兴趣，便取了一小块铜片投入稀硝酸中，发现Cu 溶解，也出现上述Zn 与稀硝酸反应的类似现象，她便确认生成了NO，并在老师的帮助下，测出恰好反应的Cu 和 HNO3的质量比为821，由此获得了Cu 与稀硝酸的反应方程式为：_。【交流与反思】根 据 探 究 结 果，请 你 解 释 稀 盐 酸 跟 铜 不 反 应 而 稀 硝 酸 却 能 跟 铜 反 应 的 原 因：_ _ 文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR

41、6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6

42、F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 Z

43、R2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q

44、9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文

45、档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB

46、8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P

47、2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4_。文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4

48、HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10

49、N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8

50、 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L10Q9O6F4文档编码:CB8M3U4P2M4 HR6F10N6F6R8 ZR2L1