2016届江苏省江阴市华士片九年级上学期期中测试化学试卷（带解析）

1.

下列能说明分子在化学变化中可分而原子不可分的是

A．走过桂花树时闻到桂花香

B．品红溶于水后，液体变红色

C．加热氧化汞生成汞和氧气

D．工业上用分离液态空气制氧气

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2.

据报道：某地一名5岁的女孩子把涂改液当饮料吸食，食道被严重烧伤。经医院检测后发现，涂改液中含有苯、甲基环已烷等多种有毒物质。由此可知，涂改液是

A．混合物

B．纯净物

C．单质

D．化合物

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3.

大蒜中含有的一种有效成分“硫化丙烯”(C₃H₆S)具有一定的杀菌食疗作用。下列有关硫化丙烯的说法正确的是

A．硫化丙烯的相对分子质量为74

B．硫化丙烯中硫元素的质量分数最大

C．硫化丙烯分子中碳、氢、硫元素质量比为3:6:1

D．硫化丙烯由3个碳原子、6个氢原子和1个硫原子构成

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4.

亚硒酸钠（Na₂SeO₃）能消除加速人体衰老的活性氧，亚硒酸钠中硒元素（Se）的化合价为

A．+3

B．+2

C．+5

D．+4

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5.

某同学梳理并归纳了以下知识点：①用肥皂水能区分软水和硬水；②加入活性炭能降低水的硬度；③可以氮气为原料制取硝酸和化肥；④最外层电子数为8的粒子一定是稀有气体的原子；⑤质子数相同的粒子一定属于同种元素；⑥保护水资源的措施是节约用水和防治水体污染。其中正确的是

A．①②④

B．①③④⑤⑥

C．①③⑥

D．②⑤⑥

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6.

下列净化水的方法中，净化程度最高的是

A．吸附

B．沉降

C．过滤

D．蒸馏

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7.

实验基本操作正确的是( )

A．点燃酒精灯	B．检查气密性
C．取用块状固体	D．读取体积

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8.

下列由事实得出的结论正确的是

编号	事实	结论
A．	过滤后滤液依然浑浊	滤纸肯定破损了
B．	某物质只由一种元素组成	该物质不一定是单质
C．	给固体加热时试管破裂	试管口肯定没有略向下倾斜
D．	某物质完全燃烧，生成物只有CO₂和H₂O	该物质一定由C、H、O三种元素组成

A. A B. B C. C D. D

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9.阅读下面短文，然后回答问题。

Wang Fei，a Chinese student，and Mary，an American student studying Chinese in China，were in a supermarket．They saw a young man walking down the stairs．In his hurry，he missed the last two steps and fell onto the ground．He tried to stand up while people around him laughed．Luckily，he seemed to be OK．

Mary found Wang Fei smiling a little and was not happy about it. “Tell me, Fei, how could people laugh when someone fell like that? Why didn't they go up and ask him if he was hurt?”

Wang Fei said, “Because they knew he wasn't hurt too much.”

“But I still don't understand．A fall is a fall．In my culture, people would never laugh!”

This is an example．The Chinese and the westerner will think and act differently when seeing such a thing．Chinese people are used to laughing or smiling．Very often the person who is in embarrassing（困窘的）situation would also laugh or smile to get out of it．However，if someone gets hurt seriously，it will not be a laughing matter any more．People will help him or her instead．

But，in that case，a westerner will rush over and help the person get up．If a westerner falls，he or she，like a Chinese person，may try to make a joke if he or she is not hurt．If two close friends are walking together，and one falls but clearly isn't hurt，a common joke is to say “Have a nice trip”．

So different people have different habits and different countries have different cultures

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10.阅读下面短文，然后回答问题。

Wang Fei，a Chinese student，and Mary，an American student studying Chinese in China，were in a supermarket．They saw a young man walking down the stairs．In his hurry，he missed the last two steps and fell onto the ground．He tried to stand up while people around him laughed．Luckily，he seemed to be OK．

Mary found Wang Fei smiling a little and was not happy about it. “Tell me, Fei, how could people laugh when someone fell like that? Why didn't they go up and ask him if he was hurt?”

Wang Fei said, “Because they knew he wasn't hurt too much.”

“But I still don't understand．A fall is a fall．In my culture, people would never laugh!”

This is an example．The Chinese and the westerner will think and act differently when seeing such a thing．Chinese people are used to laughing or smiling．Very often the person who is in embarrassing（困窘的）situation would also laugh or smile to get out of it．However，if someone gets hurt seriously，it will not be a laughing matter any more．People will help him or her instead．

But，in that case，a westerner will rush over and help the person get up．If a westerner falls，he or she，like a Chinese person，may try to make a joke if he or she is not hurt．If two close friends are walking together，and one falls but clearly isn't hurt，a common joke is to say “Have a nice trip”．

So different people have different habits and different countries have different cultures

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11.

写出下列反应的符号表达式，并在括号内注明基本反应类型
（1）铁在氧气中燃烧______________________（___）反应
（2）电解水______________________________（___）反应
（3）硝酸铵受热分解生成N₂O和水________________________________。

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12.

化学就在我们身边，它与我们的生活息息相关。
（1）请从“氧气、稀有气体、二氧化碳、明矾”中选择适当的物质填空
①净化水时使用的絮凝剂是 ②可用于电光源的气体是
③可用于炼钢、气焊的气体是 ④能使澄清石灰水变浑浊的气体是
（2）将下列短文中带点的部分，用化学用语填空：
到了夏天，太阳镜成为人们出行的一种常用保护工具。太阳镜是由镜脚、镜片、镜框组成。它的镜脚一般是由塑料制成的，玻璃镜片的主要成分是二氧化硅，变色玻璃中溴化银中银显正一价，铜制镜框使用时间过长会生成铜绿[Cu₂(OH)₂CO₃]，铜绿中含有碳酸根离子，铜绿是铜在潮湿空气中与O₂、CO₂、反应的结果。

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13.

元素周期表是学习和研究化学的重要工具。请根据下表（元素周期表的部分内容）回答有关问题：

族
周期

I A

II A

IIIA

IVA

VA

VIA

VIIA

0

2

3 Li
锂
6.941

4 Be
铍
9.012

5 B
硼
10.81

6 C
碳
12.01

7 N
氮
14.01

8 O
氧
16.00

9 F
氟
19.00

10 Ne
氖
20.18

3

11 Na
钠
22.99

12 Mg
镁
24.31

13 Al
铝
26.98

14 Si
硅
28.09

15 P
磷
30.97

16 S
硫]
32.06

17 Cl
氯
35.45

18 Ar
氩
39.95

（1）第3周期中的金属元素有    种，选择其中一种写出其阳离子的符号     。
（2）第11号元素与第17号元素组成的化合物是     ，构成该物质的微粒是    （选填“分子”、“原子”或“离子”）。
（3）在元素周期表中，同一族（纵行）的元素具有相似的化学性质。则下列各组元素具有相似化学性质的是   （填标号）。
A．C和Ne B．Be和Mg C． Al和Si    D． F和Cl

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2016届江苏省江阴市华士片九年级上学期期中测试化学试卷（带解析）

1.单选题(共8题)

2.选择题(共2题)

3.填空题(共3题)

【1】题量占比

【2】：难度分析