您所处的位置：国家教育在线 >> 初中教育 >> 初中试卷 >> 文章内容

北京市宣武区2004--2005学年度第二学期第二次质量检测初三化学

2009-10-23 来源：互联网 点击数： 1097 责任编辑： bj004

在空气中体积分数为21％的气体是 A. 氮气 B. 氧气 C. 二氧化碳 D. 稀有气体 ...

北京市宣武区2004--2005学年度第二学期第二次质量检测
初三化学


有关元素的相对原子质量：H－1 C－12 N－14 O－16 Na－23 Al－27 S－32 Cl－35.5 K－39 Mn－55 Cu－64 Zn－65 Hg－201
第I卷（选择题，共35分）
一、选择题：下列各题均有4个选项，其中只有1个选项符合题意，将正确选项填涂在机读卡上。
1. 在空气中体积分数为21％的气体是
A. 氮气 B. 氧气
C. 二氧化碳 D. 稀有气体
2. 下列变化中，属于化学变化的是
A. 矿石粉碎 B. 冰融化成水
C. 红磷燃烧 D. 铜丝弯曲
3. 能直接构成物质的粒子有
A. 分子和原子 B. 质子和中子
C. 质子和电子 D. 电子和中子
4. 下列物质中，属于纯净物的是
A. 澄清石灰水 B. 干冰
C. 天然气 D. 空气
5. 吸烟有害健康，原因之一是烟气中含有使血红蛋白不能很好地跟氧气结合的有毒气体。该气体是
A. CO B. H2
C. CO2 D. N2

 

点击下载：北京市宣武区2004--2005学年度第二学期第二次质量检测初三化学
【关闭】
上一篇： 九年级化学第一学期期终考试化学试卷 下一篇： 初三下学期期末化学试卷
 
 相关文章
九年级化学第一学期期终考试化学试卷 (2009-10-23)
初三下学期期末化学试卷 (2009-10-23)
辽宁省锦州市2008～2009学年度第一学期期末 (2009-10-22)
辽宁省凌海市石山初中2008-2009学年度八年级 (2009-10-22)
凌海市石山初中2008-2009学年度八年级下学期 (2009-10-22)
北师大东莞石竹附属学校2009—2010学年度第 (2009-10-22)
江西师大附中初三数学月考试卷 (2009-10-22)
宜宾市2009年高中阶段学校招生考试化学试题 (2009-10-22)
国家教育在线，引领智能学习新时代！
用户登录
学生 教师 自动登录
练习测验
  • 年 级:
  • 科 目:
  • 同步练习 知识测验
Moncler Outlet Belstaff Jackets Abercrombie Outlet North Face Jackets Moncler Outlet ferragamo sale Timberland men boots tods tory burch vibram five fingers shoes vibram shoes paul smith bags paul smith Shop spyder ski wear tods UK north face sale north face uk moncler outlet moncler jackets christian louboutin sale Tods mbt footwear paul smith handbags dsquared2 sale Tory Burch outlet ferragamo outlet
the north face the north face outlet the north face sale cheap the north face discount the north face the north face store the north face clearance buy the north face the north face shop the north face discounted the north face on sale the north face for sale north face north face outlet north face sale cheap north face discount north face north face store north face clearance buy north face north face shop north face discounted north face on sale north face for sale north face jackets north face coats the north face the north face outlet the north face sale cheap the north face discount the north face the north face store the north face clearance buy the north face the north face shop the north face discounted the north face on sale the north face for sale north face north face outlet north face sale cheap north face discount north face north face store north face clearance buy north face north face shop north face discounted north face on sale north face for sale north face jackets north face coats the north face the north face outlet the north face sale cheap the north face discount the north face the north face store the north face clearance buy the north face the north face shop the north face discounted the north face on sale the north face for sale north face north face outlet north face sale cheap north face discount north face north face store north face clearance buy north face north face shop north face discounted north face on sale north face for sale north face jackets north face coats the north face the north face outlet the north face sale cheap the north face discount the north face the north face store the north face clearance buy the north face the north face shop the north face discounted the north face on sale the north face for sale north face north face outlet north face sale cheap north face discount north face north face store north face clearance buy north face north face shop north face discounted north face on sale north face for sale north face jackets north face coats the north face the north face outlet the north face sale cheap the north face discount the north face the north face store the north face clearance buy the north face the north face shop the north face discounted the north face on sale the north face for sale north face north face outlet north face sale cheap north face discount north face north face store north face clearance buy north face north face shop north face discounted north face on sale north face for sale north face jackets north face coats