2012届重庆市万州区岩口复兴学校九年级第二次月考化学试卷

适用年级:初三
试卷号:307177

试卷类型:月考
试卷考试时间:2012/3/5

1.单选题(共2题)

1.
下列物质中铁元素的质量分数最高的是( )
A.FeO B.Fe2O3C.Fe3O4 D.FeCl3
2.
下列做法可用“饮鸩止渴”形容的是( )
A.合理施用农药、化肥
B.提倡植树造林,扩大绿化面积
C.加强工业废水、废气的排放监控,坚持达标排放
D.大量开办经济效益好但能耗高、污染大的企业

2.选择题(共5题)

3.

—This afternoon let's go to a good restaurant.

—Oh,it'll cost a lot of money.

—Don't worry.It is my________today.

4.

________I can see,there is only one possible way to keep away from the danger.

5.

________I can see,there is only one possible way to keep away from the danger.

6.

完形填空

      I'm sitting in a quiet room at the Millcroft Hotel, a peaceful place hidden back among pine trees about an hour out of Toronto. It's just past noon, lateJuly, and I'm1the desperate sounds of a life­-or-death2going on a few feet away.

      There's a small3burning out the last of its short life's energies in a(an)4to fly through the glass of the window.5, it's not working. The great effort offers no hope for survival. Ironically (讽刺地),the struggle is part of the trap. It is6for the fly to try hard enough to succeed in7through the glass. This fly is doomed (注定失败). It will8there on the windows ill.

      Across the room, tensteps9, the door is open. Ten seconds of flying time and this small creature could reach the outside world it10. With only a small effort now being11, it could be free of this self­set12. The breakthrough possibility is there. It would be so13.

        Why doesn't the fly try another approach, 14dramatically different? How did it get so locked in on the idea15this particular route and determined effort offer the most promise for success?

       No doubt this way makes16to the fly. Regrettably, it's an idea that will kill it.

       Trying harder isn't necessarily the solution17achieving more. It may not offer any real18for getting what you want out of life. Sometimes, in fact, it's a big part of the problem.

       If you19your hopes for a breakthrough on trying harder than ever, you may20your chances for success.

7.

完形填空

      I'm sitting in a quiet room at the Millcroft Hotel, a peaceful place hidden back among pine trees about an hour out of Toronto. It's just past noon, lateJuly, and I'm1the desperate sounds of a life­-or-death2going on a few feet away.

      There's a small3burning out the last of its short life's energies in a(an)4to fly through the glass of the window.5, it's not working. The great effort offers no hope for survival. Ironically (讽刺地),the struggle is part of the trap. It is6for the fly to try hard enough to succeed in7through the glass. This fly is doomed (注定失败). It will8there on the windows ill.

      Across the room, tensteps9, the door is open. Ten seconds of flying time and this small creature could reach the outside world it10. With only a small effort now being11, it could be free of this self­set12. The breakthrough possibility is there. It would be so13.

        Why doesn't the fly try another approach, 14dramatically different? How did it get so locked in on the idea15this particular route and determined effort offer the most promise for success?

       No doubt this way makes16to the fly. Regrettably, it's an idea that will kill it.

       Trying harder isn't necessarily the solution17achieving more. It may not offer any real18for getting what you want out of life. Sometimes, in fact, it's a big part of the problem.

       If you19your hopes for a breakthrough on trying harder than ever, you may20your chances for success.

3.填空题(共5题)

8.
某化学反应的微观模拟示意图是:

该反应的化学方程式是
______
该反应中的氧化剂是(填化学式)
__  ________。
9.
点燃的镁条可以在CO2气体中继续燃烧,生成碳和氧化镁,反应的化学方程式是   
10.
某物质的化学式为RCl2,相对分子量为M, R的相对原子质量为
11.
用化学符号填空:
(1)n个铁离子   (2) 4个过氧化氢分子     
(3)氢氧化铝     (4)碳酸钡      
12.
运用化学知识和技能,可使自然界中的水得到一定程度的净化。
⑴ 自来水生产过程中,常用 作絮凝剂;
⑵ 在家庭生活中,通过     的方法可以降低水的硬度。

4.实验题(共1题)

13.
为制取并收集一瓶干燥的CO2气体,某课外研究小组向实验教师领取了下列仪器和药品:

(1)写出编号仪器的名称①_____________;⑥_______________。要完成该实验,他们还必须向实验老师领取的仪器有镊子和___________。
(2)实验室制取时CO2发生反应的化学方程式为_________________________________。
(3)收集CO2时,他们如何检验已CO2收集满?_________________________________;
(4)实验室制取气体要选择适当反应物。我们知道实验室制取大量CO2气体不能用浓盐酸,因为_______________________;也不能用稀硫酸,因为______________________。
(5)他们对实验室制取CO2的实验条件展开了进一步的探究,做了如下四个对比实验:
①取m g块状大理石与足量的溶质质量分数为5%的盐酸反应;
②取m g块状大理石与足量的溶质质量分数为10%的盐酸反应。
实验现象:产生气泡的快慢顺序为②>①
实验结论:影响大理石和盐酸反应快慢的因素有_______________________________。
试卷分析
  • 【1】题量占比

    单选题:(2道)

    选择题:(5道)

    填空题:(5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:0

    5星难题:0

    6星难题:5

    7星难题:0

    8星难题:3

    9星难题:0