2014届江苏省苏州高新区中考二模化学试卷(带解析)

适用年级:初三
试卷号:298710

试卷类型:中考模拟
试卷考试时间:2014/7/23

1.单选题(共9题)

1.
如图所示,实验桌上放置的两容器中盛有等体积的酒精和水两种液体。几天后,两者的体积都明显减少,且酒精比水减少得多。由此现象得出的正确结论是
A.酒精与水都能挥发B.酒精比水易挥发
C.酒精的熔点比水低D.酒精的沸点比水高
2.
如图图是某反应的微观示意图,“●”、“ ”、“○”分别表示质子数不同的3 种原子。下列有关该反应的叙述正确的是

A. 乙中含有四种元素
B. 反应前后分子个数不变
C. 反应的本质是原子进行了重新组合
D. 甲、乙相对分子质量之和等于丙、丁相对分子质量之和
3.
随着科学的发展,古人点石成金的梦想现在已经可以实现了,早在1919年英国科学家卢瑟福就用α粒子轰击氮原子使氮元素变成了氧元素,下列有关说法中一定正确的是
A.α粒子在轰击氮原子过程中氮原子内质子数没有改变
B.α粒子在轰击氮原子过程中氮原子内电子数没有改变
C.α粒子在轰击氮原子过程中氮原子内中子数没有改变
D.α粒子在轰击氮原子过程中氮原子内质子数发生了改变
4.
下列实验设计中,不能有效证明二氧化碳的密度比空气大的是
A.AB.BC.CD.D
5.
下列各组括号内除杂质的方法或试剂错误的是
A.Cu粉中混有铁粉(用磁铁吸引)B.NaNO3溶液中混有NaCl(AgNO3溶液)
C.C粉中混有CuO(稀硫酸)D.CaO中混有CaCO3(稀盐酸)
6.
下列实验方案不正确的是
A.从海水中获得少量饮用水,可采用蒸馏的方法
B.从氯化钠溶液中获得氯化钠晶体,可采用直接过滤的方法
C.除去氯化钠溶液中的少量碳酸钠,可加入适量稀盐酸
D.检验某井水是否为硬水,可使用肥皂水
7.
下图是a、b两种固体物质的溶解度曲线。下列说法中错误的是(   )
A.a中含有少量b时,用降温结晶的方法提纯a
B.t℃时,等质量的a、b饱和溶液中含有相同质量的溶质
C.当温度大于t℃时,a溶液一定比b溶液浓
D.a物质的溶解度受温度变化的影响较大,b物质的溶解度受温度变化的影响较小
8.
下列化肥中,属于复合肥的是
A.NH4HCO3B.KNO3C.K2CO3D.Ca(H2PO4)2
9.
下列实验操作正确的是( )
A.读液体体积B.引燃酒精灯
C.滴加液体D.取固体药品

2.选择题(共9题)

10.按脊柱的有无,动物分为{#blank#}1{#/blank#}动物和{#blank#}2{#/blank#}动物。
11.螺丝刀的刀把越粗,拧起来就越费力。( )
12.螺丝刀的刀把越粗,拧起来就越费力。( )
13.阅读理解

    Ideas about polite behavior are different from one culture to another. Some societies, such as America and Australia, for example, are mobile and very open. People here change jobs and move houses quite often. As a result, they have a lot of relationships that often last only a short time, and they need to get to know people quickly. So it's normal to have friendly conversations with people that they have just met, and you can talk about things that other cultures would regard as personal.

    On the other hand, there are more crowded and less mobile societies where long–term relationships are more important. A Malaysian or Mexican business person, for example, will want to get to know you very well before he or she feels happy to start business. But when you do get to know each other, the relationship becomes much deeper than it would in a mobile society.

    To Americans, both Europeans and Asians seem cool and formal at first. On the other hand, as a passenger from a less mobile society puts it, it's no fun spending several hours next to a stranger who wants to tell you all about his or her life and asks you all sorts of questions that you don't want to answer.

    Cross-cultural differences aren't just a problem for travelers, but also for the flights that carry them. All flights want to provide the best service, but ideas about good service are different from place to place. This can be seen most clearly in the way that problems are dealt with.

    Some societies have “universalist” cultures. These societies strongly respect rules, and they treat every person and situation in basically the same way.

     “Particularist” societies, on the other hand, also have rules, but they are less important than the society's unwritten ideas about what is right or wrong for a particular situation or a particular person. So the normal rules are changed to fit the needs of the situation or the importance of the person.

    This difference can cause problems. A traveler from a particularist society, India, is checking in for a flight in Germany, a country which has a universalist culture. The Indian traveler has too much luggage, but he explains that he has been away from home for a long time and the suitcases are full of presents for his family. He expects that the check–in official will understand his problem and will change the rules for him. The check–in official explains that if he was allowed to have too much luggage, it wouldn't be fair to the other passengers. But the traveler thinks this is unfair, because the other passengers don't have his problem.

14.(        )的物体最不容易倒。
15.(        )的物体最不容易倒。
16.球形在各个方向上都是{#blank#}1{#/blank#},这种形状更{#blank#}2{#/blank#}。
17.1820年,丹麦的科学家( )发现了通电导线周围存在磁场。
18.下列( )哪种情况能平衡。

3.填空题(共2题)

19.
完成下列变化的化学方程式,并按要求填空。
(1)镁条在空气中燃烧 _____________________________,点燃镁条时使用的夹持仪器是________。
(2)实验室用6%的过氧化氢溶液与二氧化锰混合制氧气______________________________________,6%的过氧化氢溶液中氢元素的质量分数为____________。(计算结果精确到0.1%)
(3)将铁丝放入硫酸铜溶液中__________________________________,铁丝表面产生______色的固体。
(4)水通电分解_______________________,正极产生的气体与负极产生的气体的质量之比为_______。
(5)受到猛烈撞击时,硝酸铵会迅速分解生成一氧化二氮气体和另一种氧化物____________________,一氧化二氮中氮元素的化合价为________。
20.
现有
A.熟石灰B.碳酸钡C.苛性钠D.氧化铁E.碳酸钾F.硫酸G.氧化铜 H.盐酸
八种物质,选用其中的物质,将序号写在下列相应的横线上:
(1) 属于红色氧化物的是______________; (2) 属于不挥发性酸的是_____________;
(3) 属于易溶性碱的是________________; (4) 属于难溶性盐的是_______________。

4.实验题(共1题)

21.
(6分)如图1所示的仪器和装置,可用于实验室制取氧气,请回答有关问题:

(1)用高锰酸钾制取氧气,该反应的化学方程式是__________________________________________,其气体发生装置可选择上图中的   (填标号)组合。
(2)实验室也可以用双氧水来制取氧气,实验时还需加入少量二氧化锰,其作用是   。现要用30%的双氧水溶液配制100g溶质质量分数为6%的双氧水溶液,需要加入水的体积为    mL。
(3)在量取水的操作中,当水面接近所需刻度时,应改用上图中的    (填标号)加水至所需刻度。将配制好的溶液装入试剂瓶中,贴好标签。请在如图2所示的标签内填入试剂瓶所要贴的标签内容。
试卷分析
  • 【1】题量占比

    单选题:(9道)

    选择题:(9道)

    填空题:(2道)

    实验题:(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:5

    7星难题:0

    8星难题:5

    9星难题:1