2013年初中毕业升学考试(湖南湘潭卷)化学

适用年级:初三
试卷号:303314

试卷类型:中考真题
试卷考试时间:2013/9/18

1.简答题(共1题)

1.
有一包固体粉末,可能由CuSO4、CaCO3、Na2SO4中的一种或几种所组成.小文为了确定它的成分,进行了如下实验:

(1)操作a的名称是  (填“蒸发”或“过滤”),其中必须要用到的玻璃仪器有烧杯、玻璃棒和  
(2)写出蓝色沉淀的化学式:      
(3)白色固体是     ,它与盐酸反应的化学方程式为  ,该反应所属基本反应类型为      
(4)小文通过实验后认为,这包固体粉末中只有两种物质,他的判断是    (填“正确”或“错误”)的,理由是       

2.单选题(共13题)

2.
下列过程属于化学变化的是(  )
A.胆矾研碎B.玻璃破碎C.汽油燃烧D.轮胎爆炸
3.
以下各组溶液,不用其它试剂就能鉴别出来的是()
A.AgNO3、BaCl2、Na2CO3、HClB.Na2SO4、Na2CO3、NaCl、BaCl2
C.Na2SO4、NaNO3、H2SO4、BaCl2D.FeCl3、NaCl、NaOH、NaNO3
4.
2013年3月在上海和安徽相继发现H7N9型禽流感,达菲是一种抗病毒药物,能有效防治H7N9型禽流感,其化学式为C16H28O4N2,下列有关说法不正确的是()
A.达菲由四种元素组成
B.一个达菲分子由50个原子构成
C.达菲中碳、氢、氧三种元素的质量之比为48:7:16
D.达菲完全燃烧后只生成二氧化碳和水
5.
下列物质中,属于纯净物的是()
A.空气B.蒸馏水C.糖水D.海水
6.
宇航员在太空舱中常用NiFe2O4作催化剂,将呼出的气体和某些物质转化为氧气.已知其中Ni元素为+2价,则Fe元素的化合价为()
A. +1 B. +2 C. +3 D. +4
7.
下列物质在氧气中燃烧,火星四射,且有黑色固体生成的是()
A.红磷B.镁带C.硫磺D.铁丝
8.
在托盘天平的两边各放一只烧杯,调节天平至平衡,向两烧杯中分别注入等质量、等质量分数的稀硫酸(足量),然后向右盘的烧杯中放入一定质量的Fe粉,同时向左盘的烧杯中放入与Fe粉等质量的Zn粉,反应过程中可能出现的现象是()
A.天平最终仍然平衡B.天平指针先偏向左盘,后偏向右盘
C.天平指针始终偏向右盘D.天平指针先偏向右盘,后偏向左盘
9.
下列实验操作中正确的是()
A.稀释浓硫酸B.称量固体C.氧气验满D.点燃酒精灯
10.
植物因缺氧元素会引起叶片发黄,这时应该施加下列哪种肥料(  )
A.NH4NO3B.K2SO4C.KClD.Ca(H2PO42
11.
下列食物中,主要为人体提供蛋白质的是(  )
A.大米B.瘦肉C.苹果D.植物油
12.
下列做法不会危及食品安全的是()
A.用霉变花生压榨食用油B.用“地沟油”加工食品
C.在薯片包装中充入氮气D.用硫磺熏蒸干辣椒
13.
材料与人类生活密切相关。下列物品是由有机合成材料制成的是
A. 羊毛衫     B. 塑料盆 C. 不锈钢餐具 D. 玻璃杯
14.
小明旅游时经常使用一种用纸代替金属材料制成的锅煮面,轻便易携带,你觉得煮面时纸锅不会被烧掉的原因是()
A.纸锅的着火点很高
B.面汤使纸锅的着火点升高了
C.面汤隔绝了氧气使纸锅不能燃烧
D.加热时面汤蒸发吸热使纸锅温度达不到其着火点

3.选择题(共19题)

15.

阅读理解

    A guiding principle for master cellist Yo-Yo Ma is that “the intersection(交汇) of cultures is where new things appear.” Certainly his biography is an intersection of cultures. He was born to Chinese parents in Paris, France; both his parents were musicians. When he was seven, his family moved to the United States. Gifted for his age, Ma attended Juilliard, the world famous music institute. He then chose to earn a liberal arts degree at Harvard rather than focusing only on music.

    Even in his earliest performing years, Yo-Yo Ma had a strong belief that it was important to share music with all kinds of people. Stories are told about how he once performed in the hallway of a large building for people who were unable to get tickets to his concert. He remained interested in making music accessible to diverse audiences and furthered his interest in different cultures when he visited the Bushmen of the Kalahari. He developed a vehicle to further these ideals when he founded the Silk Road Project.

    As he has said, the Silk Road is a metaphor(隐喻) for a number of things: as the Internet of ancient times, the routes were used for trade, by religious people, adventurers, scientists, storytellers. Everything from algebra to Islam moved along the Silk Road. It's the local-global thing. In the cultural world, you want to make sure that voices don't get lost, that rich traditions continue to live, without becoming common.

    This lesson explores the philosophy behind Yo-Yo Ma's founding of the Silk Road Ensemble(乐团), his belief that the arts, and particularly music, can make the world better, and that through cooperation, one can both preserve tradition and shape cultural evolution. Students also explore their own attitudes toward the arts, writing reflective essays on how the arts have played a role in their own lives.

16.

假如你是高二学生李华,这次考试后,学校放假三天,你打算和同学出去旅游以调节身心,可是父母亲不同意,担心你的安全及学习。为此你与父母吵架,心情不好,不知如何说服父母。请用英语给你的外教Jimmy写信,向他咨询如何让你父母同意你的计划。

注意:

1)可以适当增添细节,以使行文连贯。

2)词数100左右。 开头与结尾已给出,不计入总字数。

参考词汇:the Dragon Boat Festival  端午节

Dear Jimmy,

    How is everything with you?

Yours Sincerely,

Li Hua

17.

完形填空

    Recently I understood the true meaning of love. The 1 was Kane, my neighbor Joline's two-year-old son.

    Kane was born with a physical problem on his 2. And I witnessed (目睹) the 3 that Kane's physical  shortcomings  had on his family. I also saw a 4  family that embraced (拥抱) this special child. A family that wouldn't allow Kane to know he was 5. Joline had constructed a small cart for his son to6 . Kane used his hands to move about, and the cart 7  him to “go to” any place just as everyone else was able to do. Kane was not just a member of the family, but the 8 of the family.

    With a wide smile, it was easy to see that even at the age of two, Kane liked to 9 with people very much. With wisdom of an individual (个人), this boy even 10 the most complex of human emotions. Later I came to  11 that this child was sent to help some of us who weren't just getting what love was all about.

    Kane demanded attention, 12  not because of his mobility (移动能力) challenges or other apparent shortcomings. In his mind, he had no13 or shortcomings. The 14  was that he received attention because he was alive and real and had so much to offer.

    Kane 15  me in a deep way. His ability to refuse to be different has 16 me. Kane was and is 17 a boy of powerful energy to me. From him and his family I learnt the 18 : love surpasses (超越) all things. I can only imagine that as the parent of a child like Kane one might be filled with19  . But I believe that having a child like Kane is actually a(n)20  . The parents of such special babies are angels too,just as the babies are.

18.

阅读下面的文言文,完成下列各题

    戴士衡,字章尹,莆田人。万历十七年进士。擢吏科给事中。蓟州总兵官王保滥杀南兵,士衡极论其罪。已,请亟补言官,劾石星误国大罪五。山东税使陈增请假便宜得举刺将吏,淮、扬鲁保亦请节制有司,士衡力争。仁圣太后梓宫发引,帝不亲送,士衡言:“母子至情,送死大事,奈何于内庭数武地,靳一举足劳。今山陵竣事,愿陛下扶杖出迎神主,庶少慰圣母之灵,答臣民之望。”锦衣千户郑一麟奏开昌平银矿,士衡以地逼天寿山,抗疏争。

    二十五年正月,极陈天下大计,言:“方今事势不可知者三:天意也,人心也,气运也。大可虑者五:纪纲废弛也,戎狄侵陵也,根本动摇也,武备疏略也,府藏殚竭也。其切要而当亟正者一,则君心也。陛下高拱九重,目不睹师保之容,耳不闻丞弼之议,美丽当前燕惰自佚即欲殚聪明以计安社稷其道无由诚宜时御便殿召执政大臣讲求化理则心清欲寡政事自修”亦不报。

    日本封事败,再劾星及沈惟敬、杨方亨,列上防倭八事,多议行。俄劾南京工部尚书叶梦熊、刑部侍郎吕坤、蓟辽总督孙幰及通政参议李春。时幰已罢,宜春自引归,坤亦以直谏去。给事中刘道亨右坤,力诋士衡,谓其受大学士张位指。士衡亦劾道亨与星同乡,为星报复。帝以言官互争,皆报寝。寻劾罢文选郎中白所知。

    先是,士衡再劾坤,谓潜进《闺范图说》,结纳宫闱,因请举册立、冠婚诸礼。帝不悦。至是有跋《闺范》后者,名曰《忧危竑议》,诬坤与贵妃从父郑承恩同盟结纳,羽翼贵妃子。承恩大惧。而全椒知县樊玉衡方上疏言国本,指斥贵妃,遂妄指士衡实为之,玉衡与其谋。 帝震怒,夜半传旨逮下诏狱拷讯。比明,命永戍士衡廉州。御史赵之翰复言:“是书非出 一人,主谋者张位,奉行者士衡。诸臣皆位心腹爪牙,宜并斥。”士衡再更赦,皆不原。四十五年,士衡卒于戍所。巡按御史田生金请脱其戍籍,帝不许。

(节选自《明史•戴士衡传》)

19.

依次填入下面文段空白处的词语,最恰当的一组是(    )

“媒介”这个词司空见惯,①     很难把握,②     它是一种“诱因”,是最难以实体化的功能。有了媒介,原本无关的人或事乃至思想,③     可以发生关联,④     发生关联之后,相关的人、事物和思想,⑤     并不会统合为一个均质单一体,差异依然存在,⑥     在新的关系里,其意义会发生各种难以预料的改变。


A

因为

但是

只是

B

尽管

如果

那么

于是

C

即使

/

D

/

因为

只要

哪怕

那么

20.

七选五

    How to Create a Mind Map

    Most of us think visually but we write textually. {#blank#}1{#/blank#} It also makes the information we list more difficult to process, remember, and share.

    {#blank#}2{#/blank#} It combines the brain's visual nature with our tendency to write down words. We end up with a diagram that combines logic and order in a less structured manner. This promotes clearer thinking and better comprehension.{#blank#}3{#/blank#} 

    So, how do you create a mind map? The most basic method is to just use a pen and paper, or a marker and whiteboard. It begins with a central topic or idea, then flows outward.{#blank#}4{#/blank#} The next level of topics is represented by branches extending from it.

    There aren't really any rules for creating mind maps. While most flow outwardly from the central topic, some users prefer to build mind maps in one direction.{#blank#}5{#/blank#} This can make groups of ideas easier to identify and remember. It also makes a mind map more enjoyable to create and use.

    Mind maps are extremely effective for taking notes, planning a project, brainstorming an idea, presenting information to others, and many other uses. Take out your pen and have a try.

A. They help to clarify thinking.

B. This goes against how our minds actually work.

C. They help us save time by focusing on key issues.

D. A mind map is the perfect answer to this dilemma.

E. Think of it as a tree, where the central point is the trunk.

F. It's also a lot more enjoyable than simply writing down lists.

G. Others like to add colors, pictures, or symbols in their mind maps.

21.

七选五

    How to Create a Mind Map

    Most of us think visually but we write textually. {#blank#}1{#/blank#} It also makes the information we list more difficult to process, remember, and share.

    {#blank#}2{#/blank#} It combines the brain's visual nature with our tendency to write down words. We end up with a diagram that combines logic and order in a less structured manner. This promotes clearer thinking and better comprehension.{#blank#}3{#/blank#} 

    So, how do you create a mind map? The most basic method is to just use a pen and paper, or a marker and whiteboard. It begins with a central topic or idea, then flows outward.{#blank#}4{#/blank#} The next level of topics is represented by branches extending from it.

    There aren't really any rules for creating mind maps. While most flow outwardly from the central topic, some users prefer to build mind maps in one direction.{#blank#}5{#/blank#} This can make groups of ideas easier to identify and remember. It also makes a mind map more enjoyable to create and use.

    Mind maps are extremely effective for taking notes, planning a project, brainstorming an idea, presenting information to others, and many other uses. Take out your pen and have a try.

A. They help to clarify thinking.

B. This goes against how our minds actually work.

C. They help us save time by focusing on key issues.

D. A mind map is the perfect answer to this dilemma.

E. Think of it as a tree, where the central point is the trunk.

F. It's also a lot more enjoyable than simply writing down lists.

G. Others like to add colors, pictures, or symbols in their mind maps.

22.

阅读理解

    Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants.

    Sometimes, the word green means young, fresh and growing. Sometimes, it describes something that is not yet ripe or finished. For example, a greenhorn is someone who has no experience, who is new to a situation. In the fifteenth century, a greenhorn was a young cow or ox whose horns(角) had not yet developed. A century later, a greenhorn was a soldier who had not yet had any experience in battle. By the eighteenth century, a greenhorn had the meaning it has today—a person who is new in a job.

    Someone who has the ability to grow plants well is said to have a green thumb. The expression comes from early nineteen hundreds. A person with a green thumb seems to have a magic touch that makes plants grow quickly and well. You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.

    The Green Revolution is the name given some years ago to the development of new kinds of rice and other grains. The new plants produced much larger crops. The Green Revolution was the result of hard work by agricultural scientists who had green thumbs.

    Green is also the color used to describe the powerful feeling, jealousy(嫉妒). The green-eyed monster is not a frightening creature from outer space. It is an expression used about four hundred years ago by British writer William Shakespeare in his play “Othello”. It describes the unpleasant feeling a person has when someone has something he wants. A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else. Or, that green-eyed monster may affect your friend if you get a pay rise and he does not.

23.

阅读下面文字,完成下列各题。

    西方美学强调人性三元论,主要以柏拉图和弗洛伊德最为著名。柏拉图认为“灵魂也可以分为三个部分”,分别是理智、激情和欲望。与此相似,弗洛伊德主张将人性分解为本我、自我和超我三个部分。

    这表面看来属于三元论范畴的人性论,仍然是一种二元论。比如柏拉图所谓三元论,当理智、激情与欲望三部分各司其职、和谐协调的时候,灵魂便能主宰自己,秩序井然,个人的灵魂就是正义和健康的;如果理智、激情与欲望不守本分,相互斗争都想争夺领导地位,就造成了灵魂的不正义。这实际上肯定了作为人性的最终形态仍然是正义与非正义、健康与不健康。弗洛伊德的三元论同样如此。当自我能妥善协调本我、超我与外界的关系的时候,人性处于和谐的状态;当自我不能妥善处理和协调这一关系的时候,人性就可能处于分裂状态。处于分裂状态的自我主要有两种极端的形式:一种是本我以绝对优势战胜超我乃至外界的时候,自我就可能是一个完全意义的动物性的人,在许多情况下可能显露出恶的特质;但当本我主要受到超我的监督和制约时,自我就可能是一个道德完善的人,这种情况下的人性就可能是善的。这样一来,人性就可能是和谐或分裂的、善的或恶的两种形态。这实际上同样是一种二元论,所以西方美学最具影响力的人性论是二元论。

    这种三元论的定位使西方美学关注人性的复杂性,崇尚艺术形象的典型性。在他们看来,现实世界任何事物作为一种存在永远不是只有一个因素和属性的存在,而是多种对立或并不对立因素和属性的有机统一体。

    与西方美学有所不同,中国智慧美学在人性论方面影响最大的是孟子性善论和荀子性恶论,以及告子性无善恶论。孟子主张性善论,认为人生下来就具有仁义礼智之心;荀子主张性恶论,认为人性有恶,强调道德教育的必要性。孟子、荀子虽然对人性的善与恶有不同认识,但有一点相同,这就是都肯定了人性一元论,并不认为人性善恶并举。另如告子所谓“性无善无不善'的性无善恶论,则对人性并不十分在意。在主张“齐物论”的道家美学看来,既然善恶平等不二,等齐划一,那意味着他们所主张的人性论可能超越善恶分别而等齐划一、平等不二,这也是一种主张对善恶不加分别的观点,同样具有人性一元论的特点。所以,中国智慧美学虽然对人性有多种阐释,但不像西方美学那样强调人性的多元性甚或二元性,更不强调人性的分裂与冲突,而是在很大程上主张了人性一元论。

    综观前人论述,我们发现即使人性有善与不善论,这种差异也只是一种本性差异,是为后天修养和发展提供条件,而不是强调本性中存在善与恶的矛盾冲突,以及所导致的人格结构矛盾和分裂,在一定程度上仍然可归之于人性一元论范畴。这才是中国智慧美学关于人性乃至人与自我关系的最精确阐述。

    中国智慧美学人性一元论的观点,并不是无视人性之善与恶矛盾对立的存在,只是并 不像西方美学那样夸大这种矛盾对立,将矛盾对立作为人性的基本特质,而是主张这种善与恶的分别只是人们后天所形成的一种价值判断,并不能真正体现人类原始本性的实质。

(摘编自郭昭第《中国智慧美学论要》,有删改)

24.

完形填空

    I'm sitting at the airport watching people in the last minutes before their loved ones arrive or depart.

    A woman is running in circles trying to gather family members together for a 1 . When the final moment comes before 2, she wraps her arms around her son, giving him a 3 hug that should protect him until she 4 .

    I sit with a book in my hands, waiting for my turn to leave, 5 because the ones I love have a different 6 from mine.

    I think of other departures and arrivals. I 7 seeing my daughter. I wrapped myself around her as if she'd been 8 . That year she was in her first year at university, coming home for the first time.

    Today my flight is two hours late. When my flight is 9 called, I gather my book and luggage. 10 there is no one to see me off, I do not 11  to see where I have come from. 12, I think of my husband at work 13 if I have left yet.

    As I head towards the plane, I find myself 14  yet another arrival and departure. That year, my 91-year-old grandfather died. After returning from his funeral, I arrived at the airport 15. My husband of only a year was waiting at the gate to take me in his arms. Because of my tears, 16 was looking at us, but I didn't 17.

    Life needs the important 18  all the time. I wish that all the people who went on a 19 could come back to find someone 20 them. I also wish they could leave with someone to see them off.

25.

补写出下列句子中的空缺部分。

26.

补写出下列句子中的空缺部分。

27.已知函数f(x)=x2﹣2ax+b在x=1处有极值2.求函数f(x)=x2﹣2ax+b在闭区间[0,3]上的最值.
28.已知函数f(x)=x2﹣2ax+b在x=1处有极值2.求函数f(x)=x2﹣2ax+b在闭区间[0,3]上的最值.
29.

七选五

    Nail-biting(咬指甲) is one of the most common annoying habits in children. {#blank#}1{#/blank#} But you needn't worry too much and as soon as you realize what's causing nail-biting, you can help your child overcome and stop it. So, here's what you can do about it.

    {#blank#}2{#/blank#}In some cases, children won't even realize they are biting their nails, let alone know why they are doing it. So make sure you have a conversation with your child (if he/she is old enough) and make him/her realize he/she is doing it and try to figure out why it's happening.{#blank#}3{#/blank#} It's important to agree on the level of your involvement. If he/she wants help, create a secret reminder that will make him/her stop without embarrassing him/her.

    Give alternatives (替代物).{#blank#}4{#/blank#} Depending on the age of the child, there are several things that you can offer such as a small ball, Play-Doh games, or any kind of other small toys.

    Use bitter solutions(溶液). Forcing a child to keep this solution on his/her fingers may feel like a punishment.{#blank#}5{#/blank#} Everything else will only lead to embarrassment and discouragement. Furthermore, some of these solutions contain pepper which burns if it enters a child's mouth or eyes. But if you have an adolescent child who wants to quit biting his/her nails, you may suggest and try out this solution.

A.It's also likely to continue as the child grows up.

B.Help the child become aware of the habit.

C.You should also consider asking for professional help.

D.Make an agreement on how you're going to stop it together.

E.The best thing children can do is communicate with their parents.

F.The child needs to go through the process painlessly and in agreement with you.

G.That will keep his/her hands occupied when he/she is likely to bite his/her nails.

30.

七选五

    Nail-biting(咬指甲) is one of the most common annoying habits in children. {#blank#}1{#/blank#} But you needn't worry too much and as soon as you realize what's causing nail-biting, you can help your child overcome and stop it. So, here's what you can do about it.

    {#blank#}2{#/blank#}In some cases, children won't even realize they are biting their nails, let alone know why they are doing it. So make sure you have a conversation with your child (if he/she is old enough) and make him/her realize he/she is doing it and try to figure out why it's happening.{#blank#}3{#/blank#} It's important to agree on the level of your involvement. If he/she wants help, create a secret reminder that will make him/her stop without embarrassing him/her.

    Give alternatives (替代物).{#blank#}4{#/blank#} Depending on the age of the child, there are several things that you can offer such as a small ball, Play-Doh games, or any kind of other small toys.

    Use bitter solutions(溶液). Forcing a child to keep this solution on his/her fingers may feel like a punishment.{#blank#}5{#/blank#} Everything else will only lead to embarrassment and discouragement. Furthermore, some of these solutions contain pepper which burns if it enters a child's mouth or eyes. But if you have an adolescent child who wants to quit biting his/her nails, you may suggest and try out this solution.

A.It's also likely to continue as the child grows up.

B.Help the child become aware of the habit.

C.You should also consider asking for professional help.

D.Make an agreement on how you're going to stop it together.

E.The best thing children can do is communicate with their parents.

F.The child needs to go through the process painlessly and in agreement with you.

G.That will keep his/her hands occupied when he/she is likely to bite his/her nails.

31.

进入2017年,首个网络流行语“我可能XX了假X”一炮而红,并不断得以扩散,普及。阅读下面材料,请对这个网络流行语的意思及表达的情感作解释。要求语言简明,准确,均不得超过25个字。

考试没考好,说:我可能复习了假书。休假时间太短,说:我可能休了个假假。吃了那么多还是饿,说:我可能吃了个假饭……大学不如所愿,说:我可能上了个假大学。学生不太理想,说:我可能招了假高才生。红包抢了一分钱,说:我可能抢了假红包。钱不经花,说:我可能花了假钱……

32.

如图是全国妇联发布的调查报告中的一个图表。请阅读此表,并概括出结论,不超过50个字。

33.

如图是全国妇联发布的调查报告中的一个图表。请阅读此表,并概括出结论,不超过50个字。

4.填空题(共4题)

34.
用化学用语填空.
(1)二氧化硫   ;(2)+3价的铝元素   ;(3)两个镁离子    
35.
据央视报道,有不法酒类生产企业在白酒中添加酯类物质以增强口感.下表中是几种常见的酯。

酯的名称
甲酸甲酯
甲酸乙酯
乙酸甲酯
乙酸乙酯
化学式
C2H4O2
C3H6O2
C3H6O2
X
 
(1)比较归纳是学习化学的重要方法,上述物质的共同特点有_____________(写出一条即可)。
(2)甲酸甲酯(C2H4O2)中碳、氢、氧的原子个数比为__________________。
(3)据表推测X的化学式为_____________。
(4)实验测得由甲酸甲酯(C2H4O2)、甲酸乙酯(C2H6O2)组成的混合物中碳元素的质量分数是43.2%,则氧元素的质量分数是_______,混合物中甲酸甲酯的质量分数是___。
36.
3月22日是“世界水日”.水与人类的生活和生产密切相关.
(1)天然水中含有许多杂质,可利用吸附、沉淀、过滤和蒸馏等方法净化.其中净化程度最高的是________ .
(2)硬水给生活和生产带来很大不利影响,生活中可用______ 来区分硬水和软水.其现象和结论是________
(3)生活中通过________ 可以降低水的硬度.
(4)日常生活中你经常采用的节水措施有________ .
37.
化学与生活息息相关,我们的生活离不开化学.
(1)国家提倡使用的加碘盐,是在食盐中加入适量的碘酸钾,加碘食盐里的“碘”指的是   (填“单质”、“元素”或“原子”).已知碘酸钾受热不稳定,因此,你认为炒菜时宜   (填“早”或“迟”)加入加碘盐更有利.
(2)仔细观察如图后回答:

①该图反映的环境问题是
②针对上述环境问题,请你提出一条合理化建议     

5.实验题(共2题)

38.
天然气作为燃料已进入千家万户,其主要成分是 CH4 (填化学式).它在空气中完全燃烧生成CO2和H2O.如果它不完全燃烧会生成什么物质呢?某研究性学习小组对此展开深究.

(提出猜想)生成物中一定有(填化学式),可能有CO2和CO.
(实验探究)该小组同学生成的混合气体,依次通过如图所示的装置,验证猜想.
(现象与结论)
(1)观察到A中,证明混合气体中含有CO2
(2)C中浓硫酸的作用是    
(3)观察到D中粉末由黑色变成   色,证明混合气中含有CO,该反应的化学方程式为:      
(交流讨论)(4)小武认为:从E装置中澄清石灰水变浑浊也能推断出混合气中有一氧化碳,那么B中NaOH溶液的作用是   
(5)小文则提出:从环保的角度看,此装置有一个不足之处,你认为是   
39.
实验室制取氧气所需装置如图1所示.回答下列问题:

(1)写出仪器名称:a     ,b  
(2)用过氧化氢溶液和二氧化锰制取氧气时,所选用的发生装置是    (填序号),其反应的化学方程式是      ,所选用的收集装置是或      (填序号).
(3)若用锌与稀硫酸制取氢气,反应的化学方程式是    ,其收集装置不能选  (填序号).
(4)若采用如图2所示装置制取氧气并测定其体积,实验前应检查装置的气密性.为了准确测定氧气的体积,有人提出读数时应该注意以下事项:①容器中气体必须冷却至室温;②长颈漏斗不能倾斜;③必须使量气管和长颈漏斗两边液面相平;④视线应与液体凹液面最低处保持水平.你认为必须要做到的是   (填序号).
试卷分析
  • 【1】题量占比

    简答题:(1道)

    单选题:(13道)

    选择题:(19道)

    填空题:(4道)

    实验题:(2道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:2

    5星难题:0

    6星难题:9

    7星难题:0

    8星难题:6

    9星难题:3