2013届安徽省合肥市包河区中考二模化学试卷

适用年级:初三
试卷号:295498

试卷类型:中考模拟
试卷考试时间:2013/11/20

1.简答题(共1题)

1.
我市庐江县小包庄去年发现一大型铁矿,主体为磁铁矿.冶炼磁铁矿的反应:4CO+Fe3O43Fe+4CO2.用100t含Fe3O480%的磁铁矿石,理论上冶炼含杂质4%的生铁_______?(答案保留一位小数)

2.单选题(共10题)

2.
2013年4月20日,四川雅安芦山发生7.0级地震.震后,政府迅速组织救援,群众也积极自救,下列各种灾后救援及生活行为主要利用化学变化的是(  )
        
A.搭建帐篷B.生火做饭C.铲除滚石D.应急供水
3.
2013年4月5日,国家食品药品监督管理总局批准了抗流感新药帕拉米韦氯化钠注射液,现有临床试验数据证明其对新发的H7N9人禽流感患者具有显著的治疗作用.下列有关帕拉米韦(C15H28N4O4)的说法正确的是()
A.属于无机化合物
B.一个分子中含2个氧分子
C.C、H、N、O元素质量比为15:28:4:4
D.组成元素中,碳元素质量分数最大
4.
用铱做的钢笔笔尖经久耐用,物美价廉.铱在元素周期表中有关信息如图,下列有关铱的说法不正确的是()
A.铱元素属于金属元素
B.铱化学性质很稳定
C.铱原子的核外电子数为77
D.铱元素的相对原子质量为192.2g
5.
饮水中含一定量氟化钙时,能防治牙病.氟化钙的化学式为CaF2,则氟元素的化合价为()
A.+1 B. +2 C. ﹣1 D. ﹣2
6.
浙江大学课题组近日制备出了一种超轻气凝胶,比空气还轻,压在狗尾草上也不会压弯狗尾草的毛尖(如图).气凝胶用碳纳米管和石墨烯共同支撑,内部有无数个孔隙,充斥空气,故而得名.它也是迄今已报道的吸油力最高的材料.下列说法不正确的是()
A.气凝胶常温下化学性质很稳定
B.气凝胶具有较强的吸附作用
C.气凝胶是一种化合物
D.气凝胶在氧气中完全燃烧的产物是CO2
7.
如图是M、N两种化合物的溶解度曲线示意图,据此得到的结论正确的是()
A.只有在t1℃时,M和N的溶解度才相等
B.N的溶解度随温度升高而增大
C.把N饱和溶液的温度从t2℃降至t1℃时,有晶体析出
D.N饱和溶液中溶质的质量分数随温度的升高而增大
8.
分析推理是化学学习中常用的思维方法.下列推论正确的是( )
编号
实验事实
实验结论
A
某溶液使酚酞溶液变红
该溶液一定是NaOH溶液
B
某种气体可用向上排空气法收集
该气体的密度比空气小
C
某气体能使带火星的木条立即熄灭
该气体一定是二氧化碳
D
经测定,某纯净物含两种元素
该物质一定是化合物
 
A.AB.BC.CD.D
9.
安徽徽菜是中国八大菜系之一,来自徽州,享誉天下.下列是常见的几种徽菜,其中含蛋白质最丰富的是(  )
       
A.蜜汁红芋B.杨梅丸子C.鱼咬羊D.香菇板栗
10.
2013年1月9日至12日,中国中东部大多数地区经历了严重的空气污染.《人民日报》以社论方式呼吁:美丽中国从健康呼吸开始.下列不能减轻或防治空气污染的方法是(  )
A.关闭炭炉烧烤小吃B.大力发展轻轨等公共交通
C.建筑工地及路面及时洒水除尘D.垃圾焚烧处理
11.
下列常见的实验操作图示中,正确的是(  )
A.B.
C.D.

3.选择题(共11题)

12.已知函数 {#mathml#}f(x)={ax22x1x0x2+bx+cx<0{#/mathml#} 是偶函数,直线y=t与函数y=f(x)的图象自左向右依次交于四个不同点A,B,C,D.若AB=BC,则实数t的值为{#blank#}1{#/blank#}.
13.f(x)是定义在(0,+∞)上的减函数,满足f(x)+f(y)=f(xy).
14.已知 {#mathml#}α(0π2){#/mathml#} ,且 {#mathml#}f(a)=cosα1sinα1+sinα+sinα1cosα1+cosα{#/mathml#} .
15.设集合A={x|x2+2x﹣3>0},集合B={x|x2﹣2ax﹣1≤0,a>0}.若A∩B中恰含有一个整数,则实数a的取值范围是{#blank#}1{#/blank#}.
16.设集合A={x|﹣1≤x≤2},B={x|x2﹣(2m+1)x+2m<0}.
17.设集合A={x|﹣1≤x≤2},B={x|x2﹣(2m+1)x+2m<0}.
18.

阅读理解

    Last night, on my way home I stopped because of being attracted by some hamburgers at a fast food restaurant. On my way in, a homeless man approached me and asked, “Do you have any bottles lying around?” I knew he would recycle them for a few cents, but I didn't have any, so I said no. And again he asked, “Can you spare some change ?” I smiled, and said no again. He was very respectful; he smiled back and said, “OK, thank you.” Even though he didn't have anything, he was still in good spirits. From the way he spoke I could tell he was smart.

    Then I bought one hamburger and enjoyed my meal, but in the back of my mind I wondered whether the homeless man was hungry. After I finished my meal I decided to order another one for him. At this point I didn't know if he was still around, but I tried anyway.

    At the counter I ordered a hamburger and also a hot chocolate, because it was cold outside, and I thought it would help warm him up. They delivered me the hot chocolate first and as I waited for my hamburger, I noticed the homeless man was standing right beside me. I looked at him and smiled, “This hot chocolate is for you.” He replied like a gentleman, “Thank you so much. That's very kind of you.”

    I always believe no matter how hard up I am, there are always those who are worse off than I. When you help someone, it's not always about money, it's about love. The love you give today, someone might forget tomorrow. It doesn't matter. Love anyway, because the greatest thing you can give is love.

19.已知函数f(x)= {#mathml#}(x+1)(x+a)x2{#/mathml#} 为偶函数.
20.

阅读理解

    The United States is a country of immigrants. It is a place where people from all over the world come to build a better life. Some immigrants bring their families. Some bring a few of their favorite things. Others come alone with nothing but determination. One thing that every immigrant brings with them is their culture.

    American immigration began in 1607 with the colony (殖民地) of Jamestown. In 1620, another group of people left England to build a settlement in America. They wanted to go to a place where they could practice their religion freely. Then many more people left their homes in Europe to build a better life in America. Many also came to America from Africa. By 1770, more than two million people had moved to America. Later on, more people came to the United States than ever before.

    In cities all over America, you can see different cultures that formed this country. Many things that you may think of as being “American” are actually from a foreign culture. Some of the best examples of this are the foods people eat. Pizza and spaghetti are foods that all Americans know and love. But both of them are from Italy. Baseball is an all-American sport. But the hot dogs that people eat during the game are a type of food that was brought to America by German immigrants.

    Over time, pizza and hot dogs have become a part of what is considered to be American food. In the same way, different groups of people have come together to define what an American is. An American can be a person of any background. An American can be of any faith. An American can be of any skin color. They can speak English clearly. They can speak English with an accent. Each new immigrant adds something new to American culture. It will keep changing as more people come to this country.

21.

阅读理解

    The United States is a country of immigrants. It is a place where people from all over the world come to build a better life. Some immigrants bring their families. Some bring a few of their favorite things. Others come alone with nothing but determination. One thing that every immigrant brings with them is their culture.

    American immigration began in 1607 with the colony (殖民地) of Jamestown. In 1620, another group of people left England to build a settlement in America. They wanted to go to a place where they could practice their religion freely. Then many more people left their homes in Europe to build a better life in America. Many also came to America from Africa. By 1770, more than two million people had moved to America. Later on, more people came to the United States than ever before.

    In cities all over America, you can see different cultures that formed this country. Many things that you may think of as being “American” are actually from a foreign culture. Some of the best examples of this are the foods people eat. Pizza and spaghetti are foods that all Americans know and love. But both of them are from Italy. Baseball is an all-American sport. But the hot dogs that people eat during the game are a type of food that was brought to America by German immigrants.

    Over time, pizza and hot dogs have become a part of what is considered to be American food. In the same way, different groups of people have come together to define what an American is. An American can be a person of any background. An American can be of any faith. An American can be of any skin color. They can speak English clearly. They can speak English with an accent. Each new immigrant adds something new to American culture. It will keep changing as more people come to this country.

22.

阅读理解

    The United States is a country of immigrants. It is a place where people from all over the world come to build a better life. Some immigrants bring their families. Some bring a few of their favorite things. Others come alone with nothing but determination. One thing that every immigrant brings with them is their culture.

    American immigration began in 1607 with the colony (殖民地) of Jamestown. In 1620, another group of people left England to build a settlement in America. They wanted to go to a place where they could practice their religion freely. Then many more people left their homes in Europe to build a better life in America. Many also came to America from Africa. By 1770, more than two million people had moved to America. Later on, more people came to the United States than ever before.

    In cities all over America, you can see different cultures that formed this country. Many things that you may think of as being “American” are actually from a foreign culture. Some of the best examples of this are the foods people eat. Pizza and spaghetti are foods that all Americans know and love. But both of them are from Italy. Baseball is an all-American sport. But the hot dogs that people eat during the game are a type of food that was brought to America by German immigrants.

    Over time, pizza and hot dogs have become a part of what is considered to be American food. In the same way, different groups of people have come together to define what an American is. An American can be a person of any background. An American can be of any faith. An American can be of any skin color. They can speak English clearly. They can speak English with an accent. Each new immigrant adds something new to American culture. It will keep changing as more people come to this country.

4.填空题(共2题)

23.
巢湖被誉为合肥市的“璀璨明珠”,保护巢湖刻不容缓.“不让一滴污水流入巢湖”是我市的口号.对于学校化学实验室的实验废液必须经过处理后才能排放.某校化学实验后的废液中含NaCl、FeCl3、CuCl2,请你参与废液的处理.[提示:Fe(OH)3不溶于水]

(1)测废液的pH<7,说明该溶液呈    性.
(2)写出步骤②中任一反应的化学方程式:     
(3)操作a的名称是 ,其中玻璃棒起 作用.
(4)若该废液直接排放到下水道会有什么危害:
24.
如图是实验室制取和收集气体的常见仪器.

(1)图中仪器a的名称是
(2)图中 装置可用来制取O2的发生装置(填一种即可),并写出相应的制取氧气的化学反应方程式
(3)2012年6月21日,中国三沙市成立,三沙市位于我国南海.南海海底蕴藏大量的石油和天然气,我们称为“第二个大庆”.天然气的主要成分是甲烷,甲烷的密度比空气小,难溶于水,实验室可用   (填字母)装置收集甲烷.
(4)天然气完全燃烧生成二氧化碳和水,不完全燃烧生成水和有毒气体CO,请写出天然气不完全燃烧的化学反应方程式

5.实验题(共1题)

25.
安徽凤阳盛产石灰石.石灰石的主要成分是碳酸钙,某节课上同学们对碳酸钙高温加热一段时间剩余固体的成分进行了探究.
[提出问题]剩余固体成分是什么?
[猜想与假设]
A、全部是碳酸钙
B、
C、碳酸钙和氧化钙的混合物
[设计并完成实验]请填写(1)中结论和(2)中的实验步骤及实验现象
实验操作
实验现象
实验结论
(1)取少量固体于试管中,加适量水振荡后静置,再滴几滴无色酚酞试液.
溶液变红
剩余固体成分中一定含有
.(填化学式)
(2)  
 
   
 
剩余固体成分中
一定含有碳酸钙.
 
[实验结论]通过以上实验得出,原A、B、C三个假设中,假设 (填字母)成立.
[讨论交流]有同学提出证明实验(1)的结论可用“取少量固体于试管中,加适量水振荡,直接通入CO2,看溶液是否变浑浊”的方案也行.你是否赞成他的观点,    
试卷分析
  • 【1】题量占比

    简答题:(1道)

    单选题:(10道)

    选择题:(11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:9

    7星难题:0

    8星难题:3

    9星难题:0