2009届各地高三9—11月考试题汇编(电化
2009年高考卷
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2009年高考卷一、选择题(每题1分,共5分)1. 下列哪个元素在周期表中属于非金属元素?A. 钠(Na)B. 硅(Si)C. 氧(O)D. 铁(Fe)2. 下列哪个化学反应属于放热反应?A. 燃烧反应B. 光合作用C. 碘与淀粉反应D. 氨水吸收二氧化碳3. 下列哪个生物结构属于真核细胞?A. 噬菌体B. 蓝藻C. 酵母菌D. 大肠杆菌4. 下列哪个国家是世界上面积最大的国家?A. 中国B. 俄罗斯C. 加拿大D. 美国5. 下列哪个朝代不属于我国古代“春秋五霸”之一?A. 齐B. 晋C. 秦D. 鲁二、判断题(每题1分,共5分)1. 地球自转的方向是自西向东。
()2. DNA是生物体内负责遗传信息的分子。
()3. “白马非马”是庄子提出的哲学观点。
()4. 一氧化碳和二氧化碳都是无色无味的气体。
()5. 电流的方向是由正电荷向负电荷流动。
()三、填空题(每题1分,共5分)1. 我国四大发明包括:____、____、____、____。
2. 动物细胞的基本结构包括:细胞膜、细胞质、____、____。
3. 水的化学式为____,其分子由____个氢原子和____个氧原子组成。
4. “风声雨声读书声,____;家事国事天下事,____。
”5. 一元二次方程ax²+bx+c=0的判别式为____。
四、简答题(每题2分,共10分)1. 请简要介绍牛顿三大定律。
2. 请简述光合作用的过程。
3. 请列举我国古代“四大美女”。
4. 请说明地球公转和自转的区别。
5. 请解释“力的作用是相互的”这一原理。
五、应用题(每题2分,共10分)1. 一辆汽车以60km/h的速度行驶,行驶100km需要多长时间?2. 某化学反应的化学方程式为:2H₂ + O₂ → 2H₂O。
若反应物中有4g氢气和32g氧气,求水的质量。
3. 一根长为10cm的绳子,每段长度减少1cm,求剩下的绳子长度。
4. 已知正方形的边长为5cm,求其面积。
09及11年高考英语试题及答案(全国卷)
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2009上海普通高等学校招收应届中等职业学校毕业生统一文化考试英语试卷(部分试题)Ⅱ.词汇和语法知识:21.My one-year-old son, Alex, is already showing an interest_______ music.A. toB. inC. onD. at22. We have to put off the party till next Monday since______ people can come today.A. fewB. littleC. a fewD. a little23. Of all the problems, how to provide enough tents for the villagers is ________ one.A. bigB. biggestC. the biggerD. the biggest24. Try to get as much information of the company as possible, ______ you won’t succeed in the interview.A. andB. orC. soD. for25. If you really hope to make greater progress, you ______ spend more time on your study.A. shouldB. oughtC. needD. dare26. The young man will run into trouble unless he ______ up the bad habit from now on.A. has givenB. givesC. is givingD. gave27. The children from Sichuan Province ______ English for about three years before they came to Shanghai.A. learnB. were learningC. have learnedD. had learned28. The tourists want to know when the famous Shaolin Temple______.A. buildB. builtC. was builtD. was building29. Our classmates have decided ______ a meeting to discuss what we can do for the coming sports meet.A. holdB. heldC. to holdD. to holding30. Li Ming keeps _____ his skills and now he is one of the top workers in the factory.A. developingB. developC. to developD. developed31. The experts were in the meeting-room, _______ the ways to get out of the difficult financial situations.A. to discussB. discussingC. discussD. discussed32. The public are anxious to know ______ the local government will deal with the pollution.A. whichB. whatC. whyD. how33. The employees didn’t agree to the plan ________ they thought it would do no good to them.A. ifB. thatC. becauseD. while34. Anyone_____ wishes to do his bit for the Expo can enter for the volunteer(志愿者)group.A. whichB. whoseC. whomD. who35. The retired teacher contributed most of her money to the victims of the earthquake _______ she was not rich.A. becauseB. althoughC. ifD. until36. Nowadays many students have a lot of _______ about too much homework and too little time to play.A. complainsB. agreementC. informationD. appointments37. Sally’s job is to ______ customers’ opinions of new products and find ways to improve them.A. supportB. guideC. collectD. produce38. The poor girl rose to fame very quickly. Now it was hard for her to return to her past______ life.A. ordinaryB. modernC. nobleD. comfortable39. Mr. White told his secretary to get a smaller desk because the large one________ too much room in the office.A. made up forB. got rid ofC. took upD. brought about40. ---Sorry for not having finished the paper in time.---_________. You can go on with it today.A. Of course notB. It’s a good ideaC. Don’t mention itD. It doesn’t matter Ⅲ.综合填空:“Learning a language is easy. Even a child can do it!”Most adults (who are learning a second language) would not ___41_____ with these words. For them, learning a language is a very difficult task. They need hundreds of hours of study and practice, and even this will not guarantee(确保) success for every ___42_____language learner.Language teachers often offer advice to language learners: “Read as much as you can in the new language.”“Practise speaking the language every day.”___43_____ not all the language learners can do so. Then, what does a successful language learner do? Language learning research shows that successful language learners are similar in many ways.First of all, successful language learners are independent learner. They do not __44_____ the book or the teacher. They discover their own way to learn language. They do not wait for the teacher to explain; they try to find the patterns and the rules for themselves___45____.Successful language learning is active learning. ___46_______, successful learners do not wait for a chance to use the language. They look for such a __47____ . They find people who speak the language and they ask these people to correct them when they make a mistake. They will try anything to communicate. They are not___48____ to repeat what they hear or to say strange things. They are willing to make ___49_____ and try again.Finally, successful language learners are learners with a ____50____. They want to learn the language because they are fond of the language and the people who speak it.41. A. deal B. connect C. do D. agree42. A. junior B. adult C. native D. active43. A. But B. So C. And D. Or44. A. look at B. depend on C. search for D. worry about45. A. instead B. yet C. already D. together46. A. However B. Then C. Therefore D. Still47. A. chance B. teacher C. book D. learner48. A. curious B. surprised C. likely D. afraid49. A. mistakes B. stories C. sentences D. advances50. A. question B. purpose C. reward D. memoryⅤ. 翻译:1. 春天是我最喜欢的季节。
09年高考试题精选2009年普通高等学校招生全国统一考试(四川卷)
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09年高考试题精选2009年普通高等学校招生全国统一考试(四川卷)测试题 2019.91,第II卷注意事项:1.用黑色墨水的钢笔或签字笔将答案写在签题卡上.2.本卷共6小题,共35分.第三部分:写作第一节:阅读表达(共5小题;每小题2分,满分10分)阅读下面短文,并按照题目要求用英语回答问题.Almost everybody in America will spend a part of his or her life behind a shopping cart(购物手推车). They will, in a lifetime, push the chrome-plated contraptions many miles. But few will know-or even think to ask-who it was that invented them. Sylvan N. Goldman invented the shopping cart in 1937. At that time he was in the supermarket business. Every day he would see shoppers lugging(吃力地携带) groceries around in baskets they had to carry.One day Goldman suddenly had the idea of putting baskets on wheels. The wheeled baskets would make shopping much easier for his customers, and would help to attract more business.On June 4, 1937, Goldman's first carts were ready for use in his market. He was terribly excited on the morning of that day ascustomers began arriving. He couldn't wait to see them using his invention.But Goldman was disappointed. Most shoppers gave the carts a long look, but hardly anybody would give them a try.After a while, Goldman decided to ask customers why they weren't using his carts. “Don't you think this arm is strong enough to carry a shopping basket?” one shopper replied.But Goldman wasn't beaten yet. He knew his carts would be a great success if only he could persuade people to give them a try. To this end, Goldman hired a group of people to push carts around his market and pretend they were shopping! Seeing this, the real customers gradually began copying the phony(假冒的) customers. As Goldman had hoped, the carts were soon attracting larger and larger numbers of customers to his market. But not only did more people come-those who came bought more. With larger, easier-to-handle baskets, customers unconsciously bought a greater number of items than before.Today's shopping carts are five times larger than Goldman's original model. Perhaps that's one reason Americans today spend more than five times as much money on food each year as they did before 1937-before the coming of the shopping cart.56. The underlined words “chrome-plate contraptions”in Paragraph 1 refer to ______.(No more than 3 words)57. What was the purpose of Goldman's invention? (No more than 10 words)58. Why was Goldman disappointed at first? (No more than 10 words)59. Why did Goldman hire people to push carts around his market? (No more than 10 words)60. What do you think of Goldman? Please give your reasons. (No more than 20 words)2,第二节:书面表达(满分25分)61.假设你是晨光中学的学生会主席李华。
09年高考试题精选2009年普通高等学校招生全国统一考试
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09年高考试题精选2009年普通高等学校招生全国统一考试测试题 2019.91,第二节完形填空(共20小题;每小题1. 5分,满分30分)阅读下面短文,从短文后各题所给的四个选项(A、B、C、和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
After spending a weekend away with my adult son, I was so impressed by his generous heart that I sent him this letter.2,第三部分阅读理解(共20小题;每小题2分,满分40分)阅读下列短文,从每题所给的四个选项(A、B、c和D)中,选出最佳选项,并在答题卡上将该项涂黑。
ARemembering names is an important social skill. Here are some ways to master it.Recite and repeat in conversation.When you hear a person's name,repeat it. Immediately say it to yourself several times without moving your lips. You could also repeat the name in a way that does not sound forced or artificial.Ask the other person to recite and repeat.You can let other people help you remember their names. After you've been introduced to someone,ask that person to spell the name mad pronounce it correctly for you. Most people will be pleased by the effort you're making to learn their names. Admit you don't know.Admitting that you can't remember someone's name can actually make people relaxed. Most of them will feel sympathy if you say. “I'm working to remember names better. Yours is right on the tip of my tongue. What is it again?”Use associations.Link each person yon meet with one thing you find interesting or unusual. For example,you could make a mental note: "Vicki Cheng -- tall, black hair. " To reinforce you're your associations, write them on a small card as soon as possible.Limit the number of new names you learn at one time.When meeting a group of people, concentrate on remembering just two or three names. Free yourself from remembering every one. Few of the people in mass introductions expect you to remember their names. Another way is to limit yourself to learning just first names. Last names can come later.Go early.Consider going early to conferences, parties and classes. Sometimes just a few people show up on time. That's fewer namesfor you to remember. And as more people arrive, you can hear them being introduced to others-an automatic review for you.56. How will most people feel when you try hard to remember their names?A. They will be moved.B. They will be annoyed.C. They will be delighted.D. They will be discouraged.57. If you can't remember someone's name, you may __A. tell him the truthB. tell him a white lieC. ask him for pityD. ask others to help you58. When you meet a group of people, it is better to remember __A. all their namesB. a couple of names firstC. just their last namesD. as many names as possible59. What does the text mainly tell us?A. Tips on an important social skill.B. Importance of attending parties.C. How to make use of associations.D. How to recite and repeat names.BThe year 2009 is the Year of Ox. The ox is a representative of the fanning culture of China. In the farming economy (经济), oxen are the major animals pulling plows (犁).Of course, the good of oxen is not limited to plowing. In fact, they are seen as "boats on land" for their ability to carry loads. Besides, the whole body of an ox is full of treasures. Their meat and milk are food full of nutrition, and their skin can be used to make clothes and shoes. With all these qualities, oxen are regarded as generous creatures.In the past, oxen played an important role in the spiritual life of the Chinese. Even today, oxen still play a special part in some folk activities. For example, some people who1ire in southwest China will cook cattle bone soup and share it among family members when holding the ceremony for children who reach 13. They believe that the cattle bone soup represents the blood relationship among family members. In order to express their love for oxen, people in some other areas will run to shake off diseases on the 16th day of the first month by the lunar calendar (农历), and during their run they will take their oxen along, which indicates they regard the creature as human.Because of the contribution of oxen in their lives, the Chinese people are very grateful to the animal. In addition, the use of oxen in ceremonies and the thanks people owe to oxen help todevelop various traditional customs, which becomes an important part of the folk culture of the Chinese nation.60. The words "boats an land" underlined in Paragraph 2 refer to __A. animals for taking goodsB. creatures for pulling plowsC. treasures of the folk cultureD. tools in the farming economy6l. From the third paragraph, we know that __A. oxen are no more important today than in the pastB. ceremonies are held when people cook cattle bone soupC. oxen are treated as human in some areas of ChinaD. people run with oxen to shake off diseases every month62. Which of the following helps to develop traditional customs?A. The special role of oxen in frowning.B. People's respect and love for oxen.C. The practical value of an ox's body.D. The contribution of oxen to the economy.63. Why does the author write the text?A. To stress the importance of oxen in farming.B. To introduce the Chinese folk culture.C. To describe how to celebrate the Year of Ox.D. To explain how to develop agriculture with oxen.CSometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are rub of black surfaces already, in the form of asphalt (柏油) roads?Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.The heat-colleetor is a system of connected water pipes. Most of them ran from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground. When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it underground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer (蓄水层) into which several heat exchangers (交换器) have been built. The hot water from the street runs through these exchangers, warning the ground-water, before returning to the surface through another pipe. The aquifer is thus used as a heat store.In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used towarm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.64. Which of the following is true according to the first two paragraphs?A. Arian de Bondt got his idea from his boss.B. Large, flat, black surfaces need to be built in cities.C. The Dutch engineer's system has been widely used.D. Heat can also be collected from asphalt roads.65. For what purpose are the diving pipes used?A. To absorb heat from the sun.B. To store heat for future use.C. To turn solar energy into heat energy.D. To carry heat down below the surface.66. From the last paragraph we can learn that __A. some pipes have to be re-arranged in winterB. the system can do more than warming up the buildingC. the exchangers will pick up heat from the street surfaceDTimetableD. less heat may be collected in winter than in summer67. What is most likely to be discussed in the paragraph that follows?A. What we shall do if the system goes wrong.B. What we shall do if there are no asphalt roads.C. How the system cools the building in summer.D. How the system collects heat in spring and autumn.68. Which of the following is true of the membership card?A. Its number is l0865 305305.B. It belongs to Mr. E. M. Driscoll.C. It is valid through the year of 2010.D. It gets the owner a discount when used.69. If one wants to attend a business lunch in London at l2:00,the latest train that he should take at Oxford leaves at .A. 11:45B. 11:15C. 10:35D. 10:0570. If you would like to have some vegetable beef, what may be your choice?A. French Slam®B. Chicken-Fried Steak®C. The Super Bird®D. Sandwich with Salad or Soup®71. The chart shows that from 2005 to 2008, .A. the percentage of the Spanish families with a computer rose35 pointsB. the percentage of the White families with a computer remained unchangedC. the number of the Black families with a computer was on the decreaseD. the number of the Asian families with a computer showed the sharpest increaseEA rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover,these areas would reflect more heat into the atmosphere,warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns,potentially causing certain natural disasters all over the world.In the past hundred years,humans have begun destroying rainforests in search of three major resources(资源):land for crops,wood for paper and other products,land for raising farm animals. This action affects the environment as a whole. For example,a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.There are two main reasons for this. Firstly,when people cut down trees,generally they can only use the land for a year or two. Secondly,cutting large sections of rainforests may provide a good supply of wood right now,but in the long run it actually reduces the world's wood supply.Rainforests are often called the world's drug store. More than 25% of the medicines we use today come from plants in rainforests. However,fewer than l%of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world's shrinking rainforests.72. Rainforests can help to adjust the climate because they .A. reflect more heat into the atmosphereB. bring about high rainfall throughout the worldC. rarely cause the temperature to drop lower than l6℃D. reduce the effect of heat from the sun on the earth73. What does the word “this” underlined in the third paragraph refer to?A. We will lose much more than we can gain.B. Humans have begun destroying rainforests.C. People have a strong desire for resources.D. Much carbon dioxide comes from burning rainforests.74. It can be inferred from the text thatA. we can get enough resources without rainforestsB. there is great medicine potential in rainforestsC. we will grow fewer kinds of crops in the gained landD. the level of annual rainfall affects wind patterns75. What might be the best title for the text?A. How to Save RainforestsB. How to Protect NatureC. Rainforests and the EnvironmentD. Rainforests and Medical Development3,第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
2009年部分省市高考试卷
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2009年部分省市高考试卷2009年普通高校招生统一考试北京卷(语文) 2009年普通高校招生统一考试全国2卷(文数) 2009年普通高校招生统一考试全国1卷(文综) 2009年普通高校招生统一考试全国1卷(理综)
2009年普通高校招生统一考试全国2卷(英语) 2009年普通高校招生统一考试湖北卷(英语) 2009年普通高校招生统一考试浙江卷(英语) 2009年普通高校招生统一考试湖南卷(英语)
2009年普通高校招生统一考试湖北卷(语文) 2009年普通高校招生统一考试湖北卷(文数) 2009年普通高校招生统一考试湖北卷(理数) 2009年普通高校招生统一考试福建卷(理综) 2009年普通高校招生统一考试福建卷(文数)
2009年普通高校招生统一考试福建卷(文综) 2009年普通高校招生统一考试福建卷(语文) 2009年普通高校招生统一考试福建卷(理数) word版下载:2009年高考安徽卷(英语)试题
2009年普通高校招生统一考试福建卷(英语) 2009年普通高校招生统一考试四川卷(英语) word版下载:2009年高考广东A卷(英语)试题。
广东省深圳市2009届高三九校联考试题(化学)
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广东省深圳市2009 届高三九校联考化学试题注意事项:1.本试卷分选择题和非选择题两部分,共8页,满分150分。
考试用时120分钟。
2.选择题部分用2B铅笔填涂在答题卡上,非选择题部分考生应在答题卷上指定位置作答,否则无效。
3.可能用到的相对原子质量:H—1 C—12 N—14 O—16 Na—23 Mg—24 Al—27Fe—56 Cu—64 Cl—35.5 S—32 Ca—40Mn—55 Ba—137 I—127 Si—28第Ⅰ卷(选择题,共63分)一、选择题(本题包括9小题,每小题3分,共27分。
每小题只有一个....选项符合题意。
)1.科学家最近发现两种粒子:第一种是由四个中子构成的粒子,这种粒子称为“四中子”,也有人称之为“零号元素”;第二种是由四个氧原子构成的分子。
下列有关这两种粒子的说法不正确的是()A.“四中子”的粒子不显电性B.“四中子”的质量数为4C.第二种粒子是氧元素的另一种同位素D.第二种粒子的化学式为O42.北京2008奥运会金牌为金镶玉,直径为70mm,厚6mm。
某化学兴趣小组对金牌中金属的成分提出猜想:甲认为该金属是由纯金制成;乙认为该金属是由金银合金制成;丙认为该金属是由黄铜(铜锌合金)制成。
为了验证他们的猜想,取制造这种金牌的材质粉末少量进行实验,加入下面一种试剂来证明甲、乙、丙猜想的正误,该试剂应是()A.硫酸铜溶液B.盐酸C.稀硝酸D.硝酸银溶液3.将按等物质的量的SO2和Cl2混合后的气体溶解于适量的蒸馏水中,再滴入含有品红和Ba(NO3)2的混合溶液,则发生的实验现象是()①红色溶液很快褪色②红色溶液不褪色③有白色沉淀生成④溶液仍然透明A.仅①和④B.仅①和③C.仅②和③D.仅②和④4.下列叙述正确的是()A.发生化学反应时失去电子越多的金属原子,还原能力越强B.金属阳离子被还原后,一定得到该元素的单质C.核外电子总数相同的原子,一定是同种元素的原子D.能与酸反应的氧化物,一定是碱性氧化物5.某合作学习小组讨论辨析以下说法()① SiO2可以制光导纤维;②水玻璃和漂白粉都是是混合物;③不锈钢和目前流通的硬币都是合金;④盐酸和食醋都属于电解质;⑤纯碱和熟石灰都是碱;⑥豆浆和雾都是胶体。
2009年高考试题及答案
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2009年高考试题及答案注意:本文是对2009年高考试题及答案进行全面解析和分析的文章。
第一部分:语文第一节:阅读理解题目:阅读下面这篇短文,回答问题。
(文章内容省略)答案分析:根据短文内容,可以得出答案为......题目:文中提到的"XXX"指的是什么?答案分析:在文章第X段中,提到了"XXX",这指的是......第二节:完形填空题目:阅读下面短文,从短文后所给各题的四个选项中,选出可以填入空白处的最佳选项。
(短文内容省略)答案分析:根据上下文的逻辑关系和语法规则,可以得出正确选项为......第二部分:数学第一节:选择题题目:已知函数f(x)恒大于0,且f(1)=1,f(x)+f(2-x)=4,则函数f(x)的解析式是()。
答案分析:根据题干中的条件,可以列出方程组并解得......第二节:计算题题目:已知ΔABC中,AB=AC,角B=40°,角C=70°,则角A的度数为多少?答案分析:根据三角形内角和定理,可以计算出角A的度数为......第三部分:英语第一节:完型填空题目:阅读下面短文,从短文后所给各题的四个选项中,选出可以填入空白处的最佳选项。
(短文内容省略)答案分析:根据上下文语境和词汇语法,可以得出正确选项为......第二节:阅读理解题目:阅读下面这篇短文,回答问题。
(文章内容省略)答案分析:根据短文内容,可以得出答案为......第四部分:物理题目:......答案分析:根据物理定律和计算方法,可以得出答案为......(以下部分省略,按照相同的格式对化学、生物、历史、地理等学科进行解析)通过对2009年高考试题及答案的全面解析和分析,我们可以看到......(根据需要,可以对2009年高考试题的难点、考点等进行详细分析和解读)总结:本文对2009年高考试题及答案进行了全面的解析和分析,从语文、数学、英语、物理等学科进行逐个解答,并给出了详细的答案分析过程。
2009届高三化学各地月考试题汇编:电解质溶液
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2009届高三化学各地月考试题汇编:电解质溶液1、(河北舞阳一高09高三10考)(10分)A、B、C、D四种短周期元素,原子序数依次递增,A原子形成的阳离子是一个质子,B原子的最外层电子数是其次外层电子数的2倍,C原子的最外层电子数与B原子的核外电子总数相等,D在同周期元素中原子半径最大。
A、C、D三种元素可形成化合物甲,B、C、D三种元素可形成化合物乙,甲和乙均为中学化学常见物质。
请回答:(1)化合物甲中所含化学键类型为。
(2)A的单质与C的单质在强酸性条件下构成燃料电池,其正极反应式为。
(3)将3gB的单质在足量C的单质中燃烧,所得气体通入1L 0.4mol/L的甲溶液中,完全吸收后,溶液中的溶质及其物质的量分别为;溶液中所含离子的物质的量浓度由大到小的顺序为。
(4)常温下,甲与乙的水溶液pH均为9,这两种溶液中由水电离出的OH—的物质的量浓度c(OH—)甲:c(OH—)乙=答案:(1)离子键和极性共价键(共价键、极性键均可)(2分)(全对给分)(2)O2+4H++4e-=2 H2O (2分)(3)0.1 mol NaHCO3和0.15 mol Na2CO3 (2分)(对一个给1分)c(Na+)>c(CO-23)>c(HCO-3)>c(OH-)>c(H+)(2分)2、(09届北京101中学高三化学10月考)一定能在下列溶液中大量共存的离子组是A.pH=0的溶液:Fe2+、Mg2+、NO3-、SO42-B.由水电离出的c(H+)=1×10-13mol / L的溶液:HCO3-、K+、SO42-、Cl-C.含大量Fe3+的溶液:NH4+、Na+、SCN-、Cl-D.pH=14的溶液:Na+、K+、AlO2-、CO32-3、(浙江09届海宁市高三9月模拟)某溶液中只含有Na+、H+、OH-、A-四种离子,下列说法正确的是:(A )A.若溶液中c(A-) = c(Na+),则溶液一定呈中性B.溶液中不可能存在:c(Na+)>c (A-)>c(OH-)>c(H+)C.若c(OH-)>c(H+),溶液中不可能存在:c(Na+)>c(OH-)>c(A-)>c(H+)D.若溶质为NaA、HA,则一定存在:c(A-)>c(Na+)>c(H+)>c(OH-)4、(下列说法错误的是:(C )A.五种物质在常温下溶解度最大的是Ag2SO4B.将氯化银溶解于水后,向其中加入Na2S,则可以生成黑色沉淀C.氯化银、溴化银和碘化银三种物质在常温下的溶解度随着氯、溴、碘的顺序增大D.沉淀溶解平衡的建立是有条件的,外界条件改变时,平衡也会发生移动5.(四川飞龙中学09届高三10月考)根据相关化学原理,下列推断正确的是(A )A.若弱酸HA的酸性强于弱酸HB,则同浓度钠盐溶液的pH:NaA<NaBB.若X原子的质子数为a,中子数为b,则X的质量数为:a-bC.若R2-离子和M+离子的电子层结构相同,则R2-和M+的化学性质相同D.若有反应A2+2D-=2A-十D2,则氧化性:D2>A26.(四川飞龙中学09届高三10月考)将一定量的钠铝合金置于水中,合金全部溶解,得到20 mL pH=14的溶液,然后用1 mol·L-1的盐酸滴定,至沉淀质量最大时,消耗盐酸40mL,原合金中钠的质量为(D )A.0.23 g B.0.46 g C.0.69 g D.0.92 g7、(2009届广东省中山一中高三第二次统测)在体积均为1L,pH均等于2的盐酸和醋酸溶液,分别投入0.23g Na,则下图中比较符合反应事实的曲线是( B )8、(2009届广东省中山一中高三第二次统测)下列反应的离子方程式书写正确的是A.铁屑溶于足量稀硝酸:Fe+4H++NO3-=Fe3++NO↑+2H2OB.碳酸氢钙溶液中加入足量烧碱溶液:HCO3-+OH-=CO32-+H2OC.金属钠溶于足量水中:2Na+2H2O=2Na++H2↑+2OH-D.苯酚钠溶液中通入少量CO2:2C6H5O-+CO2+H2O→2C6H5OH+CO32-9.(09海淀区高三期中) (共6分)现有浓度均为0.1 mol/L的下列溶液:①硫酸、②醋酸、③氢氧化钠、④氯化铵、⑤醋酸铵、⑥硫酸铵、⑦硫酸氢铵,⑧氨水,请回答下列问题:(1)①、②、③、④四种溶液中由水电离出的H+浓度由大到小的顺序是(填序号)。
2009年高考(广东化学)(含答案)
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一、选择题(本题包括9小题,每小题3分,共27分。每小题只有一个选项符合题意) ....
144
1.我国稀土资源丰富。下列有关稀土元素
14462Sm与62Sm的说法正确的是 150
A.
B.
C.
D. 621446214462144
62Sm与62Sm互为同位素 Sm与62Sm的质量数相同 Sm与62Sm是同一种核素 Sm与62Sm的核外电子数和中子数均为62
4.下列叙述不正确的是 ...
A.天然气和沼气的主要成分是甲烷
B.等物质的量的乙醇和乙酸完全燃烧时所需氧气的质量相等
C.纤维素乙酸酯、油脂和蛋白质在一定条件,都能水解
D.葡萄糖和蔗糖都含有C、H、O三种元素,但不是同系物
B解析:天然气与沼气的主要成分为甲烷,A正确;乙醇和乙酸的化学式不同,由方程式可知,1mol乙醇消耗3mol氧气,1mol乙酸消耗2mol氧气,B错。油脂与纤维素乙酸酯都属于酯类,水解生成对应的酸和醇,蛋白质水解生成氨基酸,C正确。葡萄糖分子式为C6H12O6,蔗糖分子式为C12H22011,不是同分异构体,也不是同系物,D正确。
2009年高考广东卷化学试题与解析
本试卷共10页,27小题,满分150分。考试用时120分钟。
可能用到的相对原子质量:H 1 C12 N 14 O 16 Na23 Mg 24 AL27 P31 S32 Cl 35.5 K39 Ca 40 Mn 55 Fe 56 Cu63.5 Sr 88
A.从海带中提取碘单质的过程涉及氧化还原反应
B.往淡水中加入NaCl等配成人造海水,可用于海产品的长途运输
C.赤潮主要是由工农业生产和生活废水引起沿海水域的富营养化而造成的
09届高三年级文科综合9月联考试题
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09届高三年级文科综合9月联考试题文科综合试题第Ⅰ卷(选择题,共140分)一、本卷共35小题,每小题4分,共140分。
每小题列出的四个选项中,只有一项是最符合题目要求的。
1.下左图所示的四个地区中,城市化水平最高的是A.① B.② C.③ D.④上右图为“我国98°E以东某山地气温、年降水量和海拔高度变化示意图”,读图回答2~3题。
2.下列有关该山地降水情况的叙述,正确的是A.水汽主要来自太平洋 B.受东北季风影响显著C.海拔2~3km处降水最多 D.每年夏秋季节多台风雨3.关于该山地气候和自然带的叙述,正确的是A.山麓为亚热带常绿阔叶林带 B.山顶气温年较差大于山麓C.气温垂直递减率7月小于1月 D.气候的垂直变化不明显为遏制单位GDP能源消耗过大的问题,目前我国正在掀起一场声势浩大的节能风暴,并由此引爆节能市场的无限商机。
据专家测算,工业、建筑、交通三大领域所蕴涵的节能商机将达三万亿元。
据此回答4~5题。
4.科技的发展对能源的影响是①非可再生能源变成可再生能源②能源的种类在不断增加③各种能源的蕴藏量将会不断增加④能源的消费结构日趋多样化A .①② B.③④ C.①③ D.②④5.当前,我国能源利用中存在的主要问题是①能源地区分布不均,能源生产与消费在地区上不平衡 ②能源消费构成不合理,在广大偏远农村仍大量用木材和作物秸杆作燃料 ③能源利用效率较低,单位产值能耗高 ④人均能源消耗量比较少A .①② B.③④ C.①③ D .①②③④右图为平原地区某城市及郊区工农业布局示意图(阴影部分表示城区)。
读图回答6~7题。
6.若该城市甲、乙、丙、丁四处均是有空气污染的工厂,这种工业布局方式最适合的地区应是A .南北纬30°—40°之间的大陆西岸B .南北纬40°—60°之间的大陆西岸C .北纬30°—50°之间的中国东部沿海D .北纬10°—25°之间的印度半岛7.若图中①②③代表城市近郊至远郊的农业用地,合理的农业布局是A .①蔬菜、乳肉、禽蛋基地 ②水果基地 ③粮食基地B .①蔬菜、乳肉、禽蛋基地 ②粮食基地 ③水果基地C .①粮食基地 ②水果基地 ③蔬菜、乳肉、禽蛋基地D .①水果基地 ②蔬菜、乳肉、禽蛋基地 ③粮食基地读 “某大陆沿回归线的地形剖面示意图”,判断8~9题。
湖北省黄冈中学2009届高三9月月考试题(化学).pdf
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22.读澳大利亚图,回答下列问题:
⑴根据图中信息可以判断澳大利亚大陆地形分布特征是
。(2分)
⑶澳大利亚绵羊养殖数量和羊毛出口量均居世界首位,被誉为“
”。 (1分)
⑷从图上可看出澳大利亚矿产
,试描述这两种矿产的分布特点
,试分析这样分布的好处
。
⑸澳大利亚的人口与城市主要分布在
,简要分析其原因
皮擦干净,再选涂其他答案。
4.答第Ⅱ卷时,先将密封线内的项目填写清楚,并将座号填写在右侧规定栏内。然后用钢笔或圆珠笔直接答在试卷
上。考试结束后,试题和答题卡一并收回。
第Ⅰ卷(选择题 共40分)
选择题(下列各题四个选项中,只有一项符合题意,每小题2分,共40分)
1.2011年11月28日至12月9日,联合国气候变化框架公约第17次缔约方会议在南非德班召开德班是南非东部港口城
⑷来往欧洲西部和撒哈拉以南非洲的货船,一般情况下到非洲去的货船装载的货物主要是工业制成品,而返航时装
载的货物以
为主。(2分)
⑸2012年第30届奥运会在伦敦(0°07′41″W,51°30′28″N)举办,中国运动员如果从北京出发,飞机应朝
方向飞行,在伦敦当地居民餐桌上多见牛排、奶油、奶酪等食品,原因是
;欧洲西部地中海沿
岸园艺业发达,盛产水果的自然条件
是
。(5分)
24.读我国四大地理区及有关气候资料图,完成下列问题。15分
(1)划分A区域的主导因素是
。C、D两地理区域的分界线是
。
(2)甲地的气候特征是
,甲地缺水的主要人为因素是
,目前正在采取的措施是
。(5分)
(3)乙地受气候影响,耕地为
⑶由甲地前往乙地,可能会遇到河流吗?______,理由______。(3分)
广东省深圳市2009届高三九校联考英语试题
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广东省深圳市2009届高三九校联考英语试题本试卷分选择题和非选择题两部分,满分150分。
考试用时120分钟。
第一部分(共110分)I 听力(共两节,满分35分)第一节听力理解 (5段共15小题;每小题2分,满分30分)每段播放两遍,各段后有几个小题,各段播放前,每小题有5秒钟的阅题时间,请根据各段播放内容及相关小题,在5秒钟内,从题中所给的A、B、C项中选出最佳选项并在答题卡上将该项涂黑。
听第一段对话,回答第1至第3三个小题。
1.Where does the conversation most probably take place?A.In the man’s office.B.In the speakers’ house.C.At a clinic.2.What can we know about the two speakers?A.The woman is a nurse.B.The man has caught a cold.C.The man used to smoke.3.What did the woman do with the man’s trouble?A.She helped him to lie in bed.B.She brought some hot water for him.C.She phoned the doctor in the end.听第二段对话,回答第4至第6三个小题。
4.What is the location of the house the speakers are talkin g about?A.In a small village 20 miles south of the capital city.B.In a large town 20 kilometers north of the capital city.C.Not far from the capital city.5.What are in the kitchen?A.A fridge, an electric stove and a dishwasher.B.A new refrigerator, an electric stove, a nice dishwasher a nd some furniture.C.A new refrigerator, an electric stove and some furniture.6.What is the woman going to do next?A.T o buy some furniture.B.To pay for the house.C.T o install something in the garden.听第三段对话,回答第7至第9三个小题。
2009学年9月普通高等学校招生浙江省统一考试
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2009年9月普通高等学校招生浙江省统一测试通用技术试题一、选择题(本大题20小题,每小题2分,共40分。
在每小题给出的四个选项中,只有一个是符合题目要求的。
)1、人类对电的需求量越来越大,从资源利用的可持续性角度来看,应当重点发展A、太阳能发电、风力发电、核能发电B、水力发电、燃油发电、风力发电C、核能发电、燃煤发电、太阳能发电D、燃煤发电、水力发电、风力发电2、知识产权制度体现了在市场经济条件下,人们对知识的尊重和保护,下列对知识产权制度理解正确的是A、知识产权制度不允许专利所有权人对专利技术的垄断B、所有技术产品都可以申请到专利权C、所有技术产品都需要申请专利权D、知识产权制度能使发明创造获得最大经济效益3、目前,汽车一般都配备了安全气囊,有的汽车还配备了颈部保护头枕,从人机关系角度分析,这些设计的作用是A、提高车速,方便操作B、更符合人体的动态尺寸C、满足特殊人群的需要D、碰撞时保护乘驾人员4、如图所示是一放大电路的线路图,该图中的元器件有:A、电阻、二极管、电池B、电阻、三极管、电容C、开关、三极管、电阻D、电容、电阻、二极管5、小强设计一个家用垃圾桶,构思了一下的材料选择方案,其中不合理的是:A、塑料外壳、木质内桶B、木质外壳、塑料内桶C、塑料外壳、塑料内桶D、木质外壳、不锈钢内桶6、李莉设计了一只教室用的拖把,在设计的过程中对拖把设计需要考虑的因素进行了分析。
以下设计分析中不合理的是:A、拖把布选用吸水性强、耐用的棉布条B、拖把柄选用质量轻、强度高的木棍C、拖把布和拖把柄用焊接连接,以防脱落D、拖把柄上设置挂钩,以便悬挂晾干7、在钢板上加工螺纹孔,用到的工具是:A、钢锯和丝锥B、锉刀和丝锥C、钻头和丝锥D、板牙和丝锥8、如图所示为圆柱体被一平面所截后的正面投影(主视图)和立体图则对应的水平投影(俯视图)为9、如图所示是一款软接线插座,下列对该产品的评价不恰当的是A、和普通多用插座形状不同,具有一定创新性B、插座密封在绝缘外套内,安全性好,维护方便C、可同时连接有一定间距的多种电器,实用性强D、可以卷起来存放,便于携带10、下列常用工具中属于刚连接的是11、王钢制作了一个小板凳(如图所示),凳腿之间设置了一根横向衬档,并将凳腿板切去三角形。
09年高考试题精选2009年普通高等学校招生全国统一考试900
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09年高考试题精选2009年普通高等学校招生全国统一考试测试题 2019.91,14.I have reached a point in my life ______ I am supposed to make decisions of my own.A. whichB. whereC. howD. why2,15.John is very __________. -if he promises to do something he'll do it.A. independentB. confidentC. reliableD. flexible3,16.Practisig Chinese kung fu can not only ________ one's strength, but also develop one's character.A. bring upB. take upC. build upD. pull up4,17.- Do you want another drink?- __________.I don't think so. B. No way C. Not at all D. I wouldn't say no5,18.__________, the pay isn't attractive enough, though the job itself is quite interesting.A. Generally speakingB. On the contraryC. In particularD. To be honest6,19.In the good care of the nurses, the boy is ______ recovering from his heart operation.A. quietlyB. actuallyC. practicallyD. gradually7,20.- What do you think of the movie?- It's fantastic. The only pity is that I __________ the beginning of it.A. MissedB. had missedC. missD. would miss8,第二节:Bryan、Olga、Scott、Anna、和David正在进行一项"企业家成功秘诀调查"。
2009学年度高三模拟试卷(一)
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2009年度高三模拟试卷(一)电子电工专业综合理论第一卷(共120分)本试卷分第一卷(客观题)和第二卷(主观题)两部分。
两卷满分300分。
测试时间150分钟。
注意事项:1.每小题选出答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
如果答案不涂写在答题卡上,答题无效。
2.题号前有“*”标志的为电子专业考生的答题,电工专业考生不得解答;题号前有“▲”标志的为电工专业考生的答题,电子专业考生不得解答。
3.测试结束,考生将第二卷和答题卡一并交回。
一、选择题(本大题共18小题,每小题5分,共90分。
)1、如图1-1所示电路中,R=30Ω,1/(ωc)=80Ω,u=300+500sin2ωtV, 则电路电流的有效值为()A、 AB、、 A D、图1-1图1-22.图1-2所示的电路中,C1=C2=1μF,C1已充电,两极板之间的电压为100V,当开关S闭合时,电容器两端的电压变为()。
A、各为100VB、各为50VC、各为0VD、C1上为0V,C2上为100V3.一个恒压源E1和电阻R串联,为R提供电功率20W,另一个恒压源E2和同一电阻R 串联,为R提供电功率80W,若将这个恒压源和电阻R按附图1-3所示电路连接,则两个电源共同作用时,为电阻R提供的电功率是()。
A、20WB、60WC、100WD、180W图1-3图1-4 4.电路1-4中,电灯L1、L2都标有“220V ,100W ”;电灯L3、L4都标有“220V ,40W ”,将A 、B 两端接入电源,最暗的灯是( )。
A 、L1B 、L2C 、L3D 、L45.电路如图1-4所示,电源电动势E=12V ,r=1Ω,电阻R1=3Ω,R2=2Ω,R3=5Ω,电容C1=4μF ,C2=1μF ,则C1、C2所带电量之比为( )A 、3:2B 、5:3C 、5:4D 、8:56.如图1-5所示电路中,A 表读数为I ,A 1表读数为I 1,A 2表读数为I 2,已知22212I I I +=则R 1、R 2、L 、C 应满足的关系是( )。
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123456782009高三各地月考试题汇编(电化学2)1.(13分)下表由元素周期表的前三周期去掉副族上方的空白区域后组合而成,表中虚线处为ⅡA 、ⅢA 族的连接处。
请用相应的化学用语....回答下列问题:(1)写出仅由e 形成的两种带有相同电荷数的阴离子的符号: 、 。
(2)h 的单质能与g 元素的最高价氧化物对应的水化物的溶液反应,请写出该反应的离子方程式 。
(3)上左图...是表示第三周期8种元素单质的熔点(℃)柱形图,已知柱形“1”代表Ar ,则其中柱形“8”代表 。
(填化学式)(4)b 、c 、d 、e 、f 的氢化物的沸点(℃)直角坐标图(上右图...),序列“5”的氢化物的名称是 ,序列“2”的氢化物的结构式为 。
(5)单质a 和单质e 可以设计为新型燃料电池,电解质为KOH 溶液,则单质a 在该燃料电池的________极发生电极反应,电极反应式为 。
答案.(16分)(1)O 2- ……………(2分) O 22-(或O 2-、O 3-)………………(2分)(2)2OH —+2Al +2H 2O =2AlO 2—+3H 2↑ ……………………………………(2分)(3)Si ……………………………………………………………………………(2分)(4)甲烷……………………(2分) H —O —H ………………………(2分)(5)负……(2分) H 2+2OH —-2e —==2H 2O (其它合理答案均给分)……(2分)2.(宁夏银川一中2009届高三年级第三次月考)以油类为溶剂的防锈漆称为油基防锈漆,由于环保方面的原因,目前要推广使用水基防锈漆,但水基漆较易溶解O 2,在干燥之前易导致金属表面产生锈斑,为此要在水基漆中加入缓蚀剂,以下可作为缓蚀剂添加的是( B )A .KMnO 4B .NaNO 2C .FeCl 3D .HNO 33.(09海淀区高三期中)(共9分)某课外活动小组同学用右图装置进行实验,试回答下列问题。
(1)若开始时开关K 与a 连接,则B 极的电极反应式为 。
(2)若开始时开关K 与b 连接,则B 极的电极反应式为,总反应的离子方程式为。
有关上述实验,下列说法正确的是(填序号)。
①溶液中Na+向A极移动②从A极处逸出的气体能使湿润KI淀粉试纸变蓝③反应一段时间后加适量盐酸可恢复到电解前电解质的浓度④若标准状况下B极产生2.24 L气体,则溶液中转移0.2 mol电子(3)该小组同学认为,如果模拟工业上离子交换膜法制烧碱的方法,那么可以设想用如图9装置电解硫酸钾溶液来制取氢气、氧气、硫酸和氢氧化钾。
图8 图9①该电解槽的阳极反应式为。
此时通过阴离子交换膜的离子数(填“大于”或“小于”或“等于”)通过阳离子交换膜的离子数。
②制得的氢氧化钾溶液从出口(填写“A”、“B”、“C”、“D”)导出。
③通电开始后,阴极附近溶液pH会增大,请简述原因。
④若将制得的氢气、氧气和氢氧化钾溶液组合为氢氧燃料电池,则电池正极的电极反应式为。
答案..(共9分,每空1分)(1)Fe -2e = Fe2+(2)2H+ + 2e- = H2↑2Cl- + 2H2O 电解2OH- + H2↑+ Cl2↑②(3)①4OH- - 4e- = 2H2O + O2↑,<② D③H+放电,促进水的电离,OH-浓度增大④O2 + 2H2O + 4e- = 4OH-4 (四川省通江中学高三10月考)在盛有水的电解槽中加入等物质量的Ag+,Pb2+,K+,SO42-,NO3-,Br-,然后用惰性电极电解,通电片刻有,氧化产物和还原产物的物质的量之比为(A)A.1:2 B. 8:1 C. 1:1 D.80:1085 (四川省通江中学高三10月考)燃料电池(如CO,CH4,CH3OH等与O2组成),用惰性电极插入KOH溶液中,在两极分别通入CH3OH和O2,有关此电池判断正确的是:(D)A.正极反应式:2CH3OH+2H2O-12e-→2CO2↑+12H+B.放电一段时间后,负极的PH值升高C.放电一段时间,阳离子向负极移动,阴离子向正极移动D.该电池在工作时,每消耗32gCH3OH,外电路中通过6mole-6.(四川省通江中学高三10月考)在某一容积为2 L的密闭容器内,加入2 mol的X和1mol的Y,在一定条件下发生如下反应:2X(g) +Y (g) 3R(g);ΔH=a kJ/mol。
反应达到平衡后,测得R的浓度为0.6mol/L下列说法正确的是( B )A.判断该反应达到平衡的依据是X,Y,Z的浓度都相等B.反应放出的热量为0.4 a kJC.其他条件不变时,同时将各物质的物质的量减半,达到新平衡时,R的体积分数减小。
D.其他条件不变,若将容器的体积压缩为1 L,平衡不移动,气体密度和平均相对分子质量不变。
7.(广西省柳州市2009届高三10月模拟考)(13分)如右图所示,常温下电解5 min后,铜电极质量增加2.16g。
试回答:(1)电源电极X名称为(填“正极”或“负极”)。
(2)电解池B中阳极的电极反应式是。
(3)若A中KCl溶液的体积是200mL,电解后溶液的PH= (忽略电解前后溶液体积的变化)。
若要使电解后的溶液恢复到与电解前完全相同,应加入。
(4)已知在.101kPa时,CO的燃烧热为283 kJ/mol。
相同条件下,若2 molCH4完全燃烧生成液态水,所放出的热量为1 mol CO完全燃烧放出热量的6.30倍,CH4完全燃烧反应的热化学方程式是:。
8.(广西省柳州市2009届高三10月模拟考)钢铁在潮湿的空气中会被腐蚀,发生的原电池反应为:-++2Fe4H222+=O+OHFeO22BNa 3AsO 4/Na 3AsO 3混合溶液A KI -淀粉 混合溶液乙醇、乙酰丙酮混合液、四丁基溴化胺导电盐以下说法正确的是( A )A .负极发生的反应为:+-=-22Fe e FeB .正极发生的反应为:--=++OH e O O H 42222C .原电池是将电能转变为化学能的装置D .钢柱在水下部分比在空气与水交界处更容易腐蚀9.(江苏睢宁县2009届高三化学10月调研试卷)右图表示的是一种金属醇盐的dianhauxue 合成装置。
在电解过程中,已知乙醇和乙酰并(CH 3COCH 2COCH 3)阴极发生的电极反应为:2CH 3CH 2OH +2e -=2CH 3CH 2O -+H 2↑下列说法中正确的是A .阳极Pb 失去电子,发生还原反应B .当阳极失去2mole -时,阴极产生2mol 氢气C .电解过程中,阳离子向阴极移动D .已知Pb -4e -=Pb 4+,当消耗Pb 的质量为103.5g 时,则转移电子2mol10. (江苏睢宁县2009届高三化学10月调研试卷) (8分)右图是一套电化学实验装置,图中C 、D 均为铂电极,U 为盐桥,G 是灵敏电流计,其指针总是偏向电源正极。
⑴As(砷)位于元素周期表中第四周期V A 族,则Na 3AsO 4溶液的pH__________(填“>7”“<7”“=7”)。
⑵向B 杯中加入适量较浓的硫酸,发现G 的指针向右偏移。
此时A 中的主要实验现象是____________________________,D 电极上的电极反应式为______________。
⑶一段时间后,再向B 杯中加入适量的质量分数为40%的氢氧化钠溶液,发现G 的指针向左偏移。
此时整套实验装置的总的离子方程式为_____________________。
⑷再过一段时间后,G 的指针逐渐归零,此时实验装置中的化学反应已经达到化学平衡状态,该反应的化学平衡常数的表达式为:K =_______________________________。
答案.⑴>7(1分) ⑵无色溶液变成蓝色(1分) AsO -34+2H ++2e -=AsO -23+H 2O(2分)⑶I 2+AsO -23+H 2O =2H ++2I -+AsO -34或I 2+AsO -23+2OH -=H 2O +2I -+AsO -34(2分)⑷c 2(H +)·c 2(I -)·c (AsO -34)c (I 2)·c (AsO -33)(或c 2(I -)·c (AsO -34)c (I 2)·c (AsO -33)·c 2(OH -)或其它有效表达式)(2分)11.(山西省实验中学09届高三9月考(4分)如图所示,通电5min 后,第③极增重2.16g ,同时在A 池中收集到标准状况下的气体224mL ,设A 池中原混合液的体积为200mL ,求通电前A 池原混合溶液中Cu 2+的浓度。
2CH 3COCH 2COCH 3+2e -=2(CH 3COCHCOCH 3)+ H 2↑○-电解答案..0.025mol ·L-112.(山西省实验中学09届高三9月考(12分)电解原理常应用于工业生产(1)火法炼铜得到的粗铜中含多种杂质(如锌、金、银等),其性能远不能达到电气工业的要求,工业上常使用电解精炼法将粗铜提纯。
在电解精炼时,粗铜接电源极,电极反应为 ;纯铜作 极,电极反应为 。
(2)工业上用电解饱和食盐水的方法可制得烧碱、氯气、氢气。
电解时,总反应化学方程式为 ;电解时所需的精制食盐水,通常在粗盐水中加入某些试剂来除去其中的Ca 2+、Mg 2+、Fe 3+、SO 42-杂质离子,添加试剂的先后顺序 (填所加试剂的化学式)。
(3)为了避免产物相混合发生副反应,工业上采用离子交换膜法电解食盐水。
下图为阳离子交换膜法电解饱和食盐水原理示意图。
电极反应为:阳极 ,阴极 。
下列说法中正确的是A .从E 口逸出的气体是H 2B .从B 中加入含少量NaOH 的水溶液以增强导电性C .标准状况下每生成22.4L Cl 2,便产生2molNaOHD .向电解后的阳极室溶液中加适量盐酸,可以 恢复到电解前的物质的浓度12.(1)正 Cu-2e -=Cu 2+; 阴 Cu 2++2e -=Cu(2)2NaCl+2H 2O 2NaOH+H 2↑+Cl 2↑;BaCl 2,Na 2CO 3,NaOH ,HCl(3)2Cl-2e -=Cl 2↑;2H ++2e -=H 2↑;ABC13.(山西省实验中学09届高三9月考下列关于实验现象的描述不正确的是( C )A .把铜片和铁片紧靠在一起浸入稀硫酸中,铜片表面出现气泡B .用锌片做阳极,铁片做阴极,电解氯化锌溶液时,锌片溶解,电极反应:Zn-2e -=Zn 2+C .把铜片插入三氯化铁溶液中,在铜片表面出现一层铁D .把锌粒放入盛有盐酸的试管中,加入氯化铜溶液,气泡放出速率加快14.(山西省实验中学09届高三9月考某同学为了使反应2HCl+2Ag 2AgCl+H 2↑能进行,设计了如下图示的四个实验,你认为可行的方案是( C )15.(山西省实验中学09届高三9月考三氧化二镍(Ni 2O 3)可用于制造高能电池,其电解法制备过程如下:用NaOH 调NiCl 2溶液pH 至7.5,加入适量Na 2SO 4后进行电解,电解过程中产生的Cl 2在弱碱性条件下生成ClO ,把二价镍氧化成三价镍。