2010年全国中考化学试题分类汇编考点1 物质的变化和性质

适用年级:初三
试卷号:264297

试卷类型:专题练习
试卷考试时间:2017/8/18

1.单选题(共3题)

1.
生活处处有化学。下列变化过程只有物理变化的是
A.葡萄酿酒B.食品发霉C.水分蒸发D.煤气中毒
2.
下列常见现象中,不发生化学变化的是()
A.天然气燃烧B.大米霉变C.灯泡发光D.铁钉生锈
3.
下列各图表示的变化中,只属于物理变化的是(  )
A.火箭发射B.煤的燃烧 
C.风力发电D.酸雨侵蚀

2.选择题(共3题)

4.

阅读理解

    This brief book is aimed at high school students, but speaks to anyone learning at any stage of life.

    Its formal, serious style closely matches its content, a school-masterly book on schooling. The author, W. H. Armstrong, starts with the basics: reading and writing. In his opinion, reading doesn't just mean recognizing each word on the page; it means taking in the information, digesting it and incorporating it into oneself just as one digests a sandwich and makes it a part of himself. The goal is to bring the information back to life, not just to treat it as dead facts on paper from dead trees. Reading and writing cannot be completely separated from each other; in fact, the aim of reading is to express the information you have got from the text. I've seen it again and again: some one who can't express an idea after reading a text is just as ineffective as someone who hasn't read it at all.

    Only a third of the book remains after that discussion, which Armstrong devotes to specific tips for studying languages, math, science and history. He generally handles these topics thoroughly and equally, except for some weakness in the science and math sections and a bit too much passion (激情) regarding history to his students, that was a hundred times more than my history teachers ever got across. To my disappointment, in this part of the book he ignores the arts. As a matter of fact, they demand all the concentration and study that math and science do, though the study differs slightly in kind. Although it's commonly believed that the arts can only be naturally acquired, actually, learning the arts is no more natural than learning French or mathematics.

    My other comment is that the text aged. The first edition apparently dates to the 1960s—none of the references(参考文献) seem newer than the late 1950s. As a result, the discussion misses the entire computer age.

    These are small points, though, and don't affect the main discussion. I recommend it to any student and any teacher, including the self-taught student.

5.

 某同学向过氧化氢溶液中加入二氧化锰制取氧气,相关数据如下:

反应前物质的质量/g

充分反应后物质的质量/g

过氧化氢溶液

二氧化锰

固体与液体混合物质量

68.0

0.1

66.5

请计算:

6.

下列图中所示的家用电器,利用电流的热效应工作的是

3.填空题(共1题)

7.
(10年云南玉溪22)现有氮气、氧气、一氧化碳、甲烷、水、酒精、食盐、碳酸钙等八种物质,请按要求填写下列空白(用化学式填写)。
⑴ 约占空气总体积4/5的是    
⑵ 最常用的溶剂
⑶ 有毒性,可燃烧的气体是
⑷ 司机驾车前饮用的饮料中,不能含有的是  
⑸ 日常生活中用来调味和防腐的是    
试卷分析
  • 【1】题量占比

    单选题:(3道)

    选择题:(3道)

    填空题:(1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:1

    5星难题:0

    6星难题:0

    7星难题:0

    8星难题:3

    9星难题:0