2014届湖北省武汉市部分学校九年级9月联考化学试卷(带解析)

适用年级:初三
试卷号:297807

试卷类型:月考
试卷考试时间:2014/2/10

1.单选题(共2题)

1.
下列变化在生活中常发生,其中属于化学变化的是:(   )
A.酒精挥发B.瓷器破碎C.煤气燃烧D.冰块融化
2.
鉴别三瓶无标签的无色的氧气、二氧化碳、空气最简便的方法是用()
A.燃着的木条B.带火星木条C.澄清石灰水D.闻气味

2.选择题(共5题)

3.一个量程为0~300μA的电流表,内阻为100Ω,再给它串联一个9900Ω的电阻,将它改装成电压表,改装后电压表的量程为{#blank#}1{#/blank#} V,两端用它来测量一段电路两端的电压时,表盘指针如图所示,这段电路的电压是{#blank#}2{#/blank#} V.

4.一个量程为0~300μA的电流表,内阻为100Ω,再给它串联一个9900Ω的电阻,将它改装成电压表,改装后电压表的量程为{#blank#}1{#/blank#} V,两端用它来测量一段电路两端的电压时,表盘指针如图所示,这段电路的电压是{#blank#}2{#/blank#} V.

5.一个量程为0~300μA的电流表,内阻为100Ω,再给它串联一个9900Ω的电阻,将它改装成电压表,改装后电压表的量程为{#blank#}1{#/blank#} V,两端用它来测量一段电路两端的电压时,表盘指针如图所示,这段电路的电压是{#blank#}2{#/blank#} V.

6.

阅读理解

    We can have conflicts with our important persons like friends, relatives, workmates, etc. But the conflict doesn't necessarily mean that the relationship will be destroyed. In fact, sometimes conflict helps people to let out their silent feelings, allowing them to free their suppressed emotions. However, when in a conflict, we usually get angry and say or do things which aren't linked to the problem at hand. Therefore, it is important that we should try to avoid conflicts through effective communication.

    In a heated argument, we usually say things that aren't related to the real problem, and even use rude words to make sure we gain an advantage over the other persons. Then the whole situation goes badly. So we should not separate(隔离) the root cause of the problem and build our discussion around it. This ensures that there are no rude remarks and the situation moves in a positive direction.

    It's easy for us to think we're right and if something isn't working out, it surely must be someone else's fault. However, if you aim to solve a conflict, first of all, you should show some respect and allow the other persons to express themselves. Using remarks like, "I understand your concern on this "or "I know you're right at your end", would make the other persons feel more appreciated.

    Sometimes some people get too excited and may behave in the wrong way or say something others may not appreciate. This can cause a worse situation. Actually, they should control their emotions and keep calm. This has to be learned through self-control and observing behavior of other people.

    The tips mentioned above are useful for most situations. However, we don't rule out the possibility that there are some people who always want to create some sort of trouble for others. You can tell them from others, and putting in an effort to resolve a conflict with them may just not be a wise idea. The best way to deal with these people is to forget them. A famous saying can help you and that is: "You should never fight with a pig; you both get dirty and only the pig likes it."

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。

7.

阅读理解

    We can have conflicts with our important persons like friends, relatives, workmates, etc. But the conflict doesn't necessarily mean that the relationship will be destroyed. In fact, sometimes conflict helps people to let out their silent feelings, allowing them to free their suppressed emotions. However, when in a conflict, we usually get angry and say or do things which aren't linked to the problem at hand. Therefore, it is important that we should try to avoid conflicts through effective communication.

    In a heated argument, we usually say things that aren't related to the real problem, and even use rude words to make sure we gain an advantage over the other persons. Then the whole situation goes badly. So we should not separate(隔离) the root cause of the problem and build our discussion around it. This ensures that there are no rude remarks and the situation moves in a positive direction.

    It's easy for us to think we're right and if something isn't working out, it surely must be someone else's fault. However, if you aim to solve a conflict, first of all, you should show some respect and allow the other persons to express themselves. Using remarks like, "I understand your concern on this "or "I know you're right at your end", would make the other persons feel more appreciated.

    Sometimes some people get too excited and may behave in the wrong way or say something others may not appreciate. This can cause a worse situation. Actually, they should control their emotions and keep calm. This has to be learned through self-control and observing behavior of other people.

    The tips mentioned above are useful for most situations. However, we don't rule out the possibility that there are some people who always want to create some sort of trouble for others. You can tell them from others, and putting in an effort to resolve a conflict with them may just not be a wise idea. The best way to deal with these people is to forget them. A famous saying can help you and that is: "You should never fight with a pig; you both get dirty and only the pig likes it."

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。

3.填空题(共2题)

8.
通过实验现象和题给信息,按要求填空。为测定空气的成分按下图进行实验:

⑴将燃烧匙中过量的红磷点燃后放集气瓶中,能观察到的现象是    , 
(2)反应后冷却打开止水夹,烧杯中的水会进入达到集气瓶体积的 。   
(3)已知:镁+氧气点燃→氧化镁(固体),镁+氮气点燃→二氮化三镁 (固体),镁+二氧化碳点燃→氧化镁+碳。
根据上述反应,能否用镁代替磷测定空气中氧气所占的体积分数?    (填“能”或“不能”)
9.
根据下图回答问题。

请回答以下问题:(1)装置中标“a”的仪器名称是_____。(2) 实验室加热高锰酸钾制取氧气的文字表达式为    ,(3)反应的发生装置为___ (填序号,下同),收集装置是C或_______,选用这两种收集方法的原因是________  ;(4)试管口塞一团棉花的目的是  ;实验结束时试管炸裂,可能原因是(写一条):     。(5)若选用B装置制取氧气,反应的文字表达式为_________
试卷分析
  • 【1】题量占比

    单选题:(2道)

    选择题:(5道)

    填空题:(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:0

    5星难题:0

    6星难题:4

    7星难题:0

    8星难题:0

    9星难题:0