2011年初中毕业升学考试(浙江湖州卷)化学部分

适用年级:初三
试卷号:298197

试卷类型:中考真题
试卷考试时间:2011/11/14

1.科学探究题(共1题)

1.
某同学看到装有薯片的包装袋总是鼓鼓的,里面充有气体。他进行了如下探究:
提出问题:……
建立假设:袋内气体可能是二氧化碳。
实验方案:将燃着的木条伸入已收集满该气体的集气瓶中,观察现象。
获得证据:……
得出照论:……
(1)他提出的问题是____________________。
(2)其他同学一致认为该实验方案是不合理的,正确的实验方案是:将收集的该气体 ______     _,观察现象。

2.计算题(共1题)

2.
2010年全国两会期间,与会人员领到的会议通知、日程表、便签纸等都是外观与普通纸相似的“石头纸”。“石头纸”的主要原料为碳酸钙,加上少量聚乙烯和胶合剂制成(聚乙烯和胶合剂不溶于水且不与盐酸反应)。
(1)“石头纸”中的碳酸钙属于______(选填“单质”、“氧化物”、“酸”、“碱”或“盐”)。
(2)为了测定某种“石头纸”中碳酸钙的质量分数,某同学取该种“石头纸”样品l0克,加人100克7.3%的盐酸溶液充分反应。反应后烧杯内剩余物质的总质量为106.48克;经过滤干燥后称得固体残渣质量为2克;
该同学想出甲、乙、丙三种计算方案:
甲:根据“反应后烧杯内剩余物质的总质量106 .48克,可知二氧化碳的质量,……”求解;
乙:根据“反应后经过滤干燥后称得固体残渣的质量2克,可知样品中碳酸钙的质量, ……”求解;
丙:根据“100克7.3%的盐酸溶液,可知参加反应的氯化氢质量,……”求解。
以上方案中,不正确的是_____ _____。
(3)根据上述的某个正确方案计算该“石头纸”中碳酸钙的质量分数。_______________

3.单选题(共3题)

3.
下列表中各组物质不能按照图中关系(“一”表示反应一步完成)转化的是
A.AB.BC.CD.D
4.
许多人喜欢染发,经调查染发剂中常含有对苯二胺(化学式为C6H8N2),它有致癌作用,建议不要轻易染发。下列有关对苯二胺的分析不正确的是
A. 由三种元素组成     B. 氢元素所占质量分数最小
C. 属于有机物   D. 碳、氢、氮三种元素的质量比为3:4:1
5.
知识梳理有助于我们对已学知识的巩固,下图是某同学学习物质结构知识后,以二氧化碳为例进行的梳理,下列选项中与a、b、c相对应的是()
A.原子、原子核、核外电子B.原子核、原子、核外电子
C.原子、核外电子、原子核D.核外电子、原子核、原子

4.选择题(共6题)

6.

SUNNY SCHOOL
    We are a bilingual (双语) school for children of 6-15. We want a cook, a library assistant, a sports coach and a language teacher.

JobAgeLanguageSkillOther term(其它条件)
Cook25-40ChineseCooking both Chinese food and western foodHealthy
Library assistant20-35Chinese
English
Having the knowledge (知识) of different kinds of booksCareful
Sports Coach20-40Chinese
English
Majoring in (主修) physical educationHealthy, strong
TeacherChinese
English
Majoring in English

7.

I want to go shopping. __________?


8.

I want to go shopping. __________?


9.

     Last Saturday, Tony went to see Benny. But he didn't know  1 Benny lived.  2 the way, he stopped in front of a yellow house, and asked an old woman the 3 to Benny's house. "His house is not far from my house," said the woman. "It's behind the trees. But you can't get there   4 You can go there by bus. It'll  5 you hours to get there  6 foot. " "What's  7with her?" Tony thought, "I can see Benny's house from here now.  It's behind the 8  ."
    Then Tony walked to the other side of the trees. He found the old woman was   9There was a river in front of him, and he couldn't see a boat. The house was on the other side of the   10.

10.

      Some children want to be writers some day. They mean that they want to write stories or books for people to read. That's good! It's good to write something for people to read! But they should know that they need to be good readers first before they really are good writers. They should read a lot of books, and read for hours and hours every day instead (代替) of watching TV and spending a lot of time playing games when they are free.
      If you are a good reader, it doesn't take you long to do the reading homework. Then you have time to read many other books for fun. Because you read so well, you have more fun in reading and you want to look for more books to read.
     Before you decide to be a good writer, you'd better say to yourself, "I must read and read and read more and more!"

11.

      Some children want to be writers some day. They mean that they want to write stories or books for people to read. That's good! It's good to write something for people to read! But they should know that they need to be good readers first before they really are good writers. They should read a lot of books, and read for hours and hours every day instead (代替) of watching TV and spending a lot of time playing games when they are free.
      If you are a good reader, it doesn't take you long to do the reading homework. Then you have time to read many other books for fun. Because you read so well, you have more fun in reading and you want to look for more books to read.
     Before you decide to be a good writer, you'd better say to yourself, "I must read and read and read more and more!"

5.填空题(共3题)

12.
今年杭宁高铁湖州段正在建设中,工程技术人员点燃铝热剂(铝粉和氧化铁粉末的混合物),利用铝热剂燃烧释放大量的热来焊接铁轨。
(1)高温可以使铁轨接口处的铁___ _(选填“熔化”或“汽化’’),冷却后达到焊接的目的。
(2)点燃铝热剂反应的化学方程式为:2Al+Fe2O3 Al2O3+2Fe,某同学回忆起氢气与氧化铜反应时,氢气是还原剂,他推理得出上述反应中还原剂是________(选填“Al或 “Fe2O3”);Fe2O3中铁元素的化合价为________价。
13.
我市某学校科学实验考查“粗盐提纯”操作。请回答此实验操作相关问题:
(1)粗盐提纯的过程是______、过滤、蒸发。
(2)过滤操作需要用到的实验器材为烧杯、带铁固的铁架台、滤纸、玻璃棒和____
14.
室温下(200C),往装有100毫升水的烧杯中加入1克熟石灰,充分搅拌,底部仍留有较多熟石灰。实验后同学们分析实验现象及数据得出如下结论:
结论一:烧杯中形成的溶液为室温下的熟石灰饱和溶液;
结论二:在室温下,熟石灰的溶解度小于1克;
(1)上述结论正确的是______。
(2) 将无色酚酞试液滴入该溶液中,能观察到_ _____。
试卷分析
  • 【1】题量占比

    科学探究题:(1道)

    计算题:(1道)

    单选题:(3道)

    选择题:(6道)

    填空题:(3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:3

    5星难题:0

    6星难题:3

    7星难题:0

    8星难题:2

    9星难题:0