2012年初中毕业升学考试(四川凉山卷)化学

适用年级:初三
试卷号:298055

试卷类型:中考真题
试卷考试时间:2012/9/7

1.单选题(共5题)

1.
在化学反应,2CuO+C2Cu+CO2 ↑ 中,氧化剂是
A. CuO B. C C. Cu D. CO2
2.
下列元素符号书写正确的是
A. 镁mG   B. 锌ZN    C. 氯Cl     D. 氖ne
3.
骨质疏松,可用葡萄糖酸钙[Ca(C6H1107)2]作补钙剂,下列关于葡萄精酸钙说法正确的是
A.葡萄糖酸钙由四种原子构成B.葡萄糖酸钙的相对分子质量是430g
C.一个葡萄糖酸钙分子中共有49个原子D.葡萄糖酸钙中钙元素的质量分数最高
4.
下列四组物质,从左至右能发生化学反应的是(如:a+b—反应 b+c—反应 c+d—反应)(  )
A.AB.BC.CD.D
5.
下列对物质的讨论,不正确的是
A.候氏制碱法制得的“碱”是盐
B.工业用盐中的亚硝酸钠的化学式是NaN02
C.明矾[KAl(S04)2·l2H2O],是化合物
D.长期饮用纯净水.对青少年身体健康有利

2.选择题(共11题)

6.

— Look! The light in Mr. Brown's office is still on. He ___________ be working there.

— It ___________ be him. He has gone to America.

7.

Mr. Green will arrive here and give us a speech ___________ the morning of December 22nd.

8.

读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。

    Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both  1 , plant a lot of trees. But this may not be the best way to make your home a  2 place.

   Last week we visited a park in Hebei. We were  3  to find most of the trees had been burned. The workers told us that the trees   4   soon after they were planted because they weren’t watered well enough.   5workers burned them and cleaned the place for   6  trees to be planted this year.   7  a card found in one of the dead trees, a student wrote, "I hope this tree will grow up with me to   8   the backbone(栋梁) of our country."The workers said that the survival(存活) of the trees was really more important than  9   trees were planted.

    Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and  10  the trees.

9.

读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。

    Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both  1 , plant a lot of trees. But this may not be the best way to make your home a  2 place.

   Last week we visited a park in Hebei. We were  3  to find most of the trees had been burned. The workers told us that the trees   4   soon after they were planted because they weren’t watered well enough.   5workers burned them and cleaned the place for   6  trees to be planted this year.   7  a card found in one of the dead trees, a student wrote, "I hope this tree will grow up with me to   8   the backbone(栋梁) of our country."The workers said that the survival(存活) of the trees was really more important than  9   trees were planted.

    Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and  10  the trees.

10.

读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。

    Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both  1 , plant a lot of trees. But this may not be the best way to make your home a  2 place.

   Last week we visited a park in Hebei. We were  3  to find most of the trees had been burned. The workers told us that the trees   4   soon after they were planted because they weren’t watered well enough.   5workers burned them and cleaned the place for   6  trees to be planted this year.   7  a card found in one of the dead trees, a student wrote, "I hope this tree will grow up with me to   8   the backbone(栋梁) of our country."The workers said that the survival(存活) of the trees was really more important than  9   trees were planted.

    Some people in Beijing now have a new idea that they can donate(捐赠) some money and let professionals (专业人士) plant and  10  the trees.

11.

— Could you tell me ___________?

— Sorry, I don't know. I will call you when he comes back.

12.

— Listen! Somebody is ___________ at the door.

— Don't answer the door! Mom doesn't let us do it while she is out.

13.

It is a pity that we have to ___________ the school trip because of the rainy days.

14.

It is a pity that we have to ___________ the school trip because of the rainy days.

15.

阅读下面语言材料,然后按文后要求做题。根据材料内容选择最佳答案。

                                                                                    A

    Four years ago when I was a boy of 11, I got into the biggest trouble as a kid. It was a Saturday morning. Both my parents were out, leaving me and my 10-month-old sister home alone. Anyway, my sister was still asleep in her room. In fact I had the house to myself. I decided to do some drawing. Soon I gave up. Nothing was on TV, so I felt bored and touched the candles on the shelf …I had an idea! What would happen if I set fire to some kitchen paper? Well, of course it went on fire, but it wasn't the tiny flame(火苗 ) I'd expected, and I couldn't blow it out. I threw it on the floor, and then luckily got my dad's boots(靴子) and stamped it out.

    I thought I was safe until there was a huge hole in my room. When my mum came home later, she smelt the smoke immediately. She dropped the shopping bag, luckily for me, over the hole. I thought this meant she would never see it. However, after running round the house checking for a fire, she of course picked up the bag and saw the hole. Next I was grounded(关禁闭) and in trouble for months. Even worse, the hole was still there, reminding me of what I did.

16.

阅读下面语言材料,然后按文后要求做题。根据材料内容选择最佳答案。

                                                                                    A

    Four years ago when I was a boy of 11, I got into the biggest trouble as a kid. It was a Saturday morning. Both my parents were out, leaving me and my 10-month-old sister home alone. Anyway, my sister was still asleep in her room. In fact I had the house to myself. I decided to do some drawing. Soon I gave up. Nothing was on TV, so I felt bored and touched the candles on the shelf …I had an idea! What would happen if I set fire to some kitchen paper? Well, of course it went on fire, but it wasn't the tiny flame(火苗 ) I'd expected, and I couldn't blow it out. I threw it on the floor, and then luckily got my dad's boots(靴子) and stamped it out.

    I thought I was safe until there was a huge hole in my room. When my mum came home later, she smelt the smoke immediately. She dropped the shopping bag, luckily for me, over the hole. I thought this meant she would never see it. However, after running round the house checking for a fire, she of course picked up the bag and saw the hole. Next I was grounded(关禁闭) and in trouble for months. Even worse, the hole was still there, reminding me of what I did.

3.填空题(共3题)

17.
有下列微粒的结构示意图,请接要求填空:

①属于同一周期的元素是 (填序号.下同);②属于同一种元素的是 ,③空气中含量最多的物质的化学式是    ;④常用于治疗胃酸过多的碱的化学式
18.
右图是甲乙两种固体物质的溶解度曲线:

①t2℃时.甲物质的溶解度是  
②分析t1℃时,将10g乙物质放人1O0g水中,充分溶解后所得溶液是 溶液(填“饱和”或“不饱和”)。
19.
实验时,程鹏把一根生锈的铁钉放入足量的稀硫酸中,过一会儿,他看到的现象是 ;发生的化学反应方程式为 ;过一段时间后,他又看到铁锈完全消失,且铁钉表面有气泡产生。该反应的化学方程式为  ;此反应的基本类型是 反应。

4.实验题(共2题)

20.
实验室制取气体的装置如下图,请按要求选择装置井回答下列问题。

①装置中a仪器的名称是   ,b仪器的名称是
②实验室用于制取二氧化碳的发生装置和收集装置是 ,发生的化学反应方程式为
③利用②的装置还可以制取的气体是 ,发生的化学反应方程式为    
 
21.
凉山某些地区的少数农民有焚烧秸秆和铲烧草皮的习惯,这种做法既浪费资源,又污染环境。现有生石灰、草木灰、水、无色酚酞和一些化学仪器的替代品:塑料瓶、土陶碗、木筷、纱布等。请你根据所学知识在家里完成制取氢氧化钾的实验与探究。
①将草木灰溶于水,搅拌,静置。经处理后得到草木灰的浸取液,.取浸取液少许,滴入几滴无色酚酞试液,溶液呈现 色,从而知道草木灰浸取液显 (填“酸性、碱性、中性”);
②写出生石灰与水反应的化学方程式为  
③将②得到的产物与草木灰的浸取液混合,发生的化学反应方程式为     
④将③反应后的混合物进行分离,此分离的方法叫  ,再将所得液体进行加热蒸发,就可制得氢氧化钾。能使
试卷分析
  • 【1】题量占比

    单选题:(5道)

    选择题:(11道)

    填空题:(3道)

    实验题:(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:2

    5星难题:0

    6星难题:6

    7星难题:0

    8星难题:2

    9星难题:0