河南省长葛市第一初级中学2018届九年级上学期第二次月考化学试题

适用年级:初三
试卷号:259976

试卷类型:月考
试卷考试时间:2019/4/25

1.推断题(共1题)

1.
甲、乙、丙、丁是常见的化合物,它们有如下图所示转化关系(部分物质已略去)。甲是相对分子质量为16的气体;乙是最常见的液体;丁是白色难溶固体,其中金属元素的质量分数为40%。

(1)则甲的化学式为_____。(2)写出①②反应的化学方程式_____,_____

2.简答题(共1题)

2.
如何鉴别氢气,一氧化碳,甲烷三种无色气体?_____

3.单选题(共13题)

3.
在X+2O2 =CO2+2H2O的反应中,根据质量守恒定律可判断出X的化学式为( )
A.CH4B.C2H5OHC.CD.CO
4.
下列变化中,属于化学变化的是(  )
A.红磷燃烧B.冰融化成水C.矿石粉碎D.铜丝弯曲
5.
下列物质的用途主要利用其化学性质的是(  )
A.金刚石制作刀具B.水作溶剂C.用16%的食盐水选种D.氧气供给呼吸
6.
下列各物质按照单质、氧化物、混合物的顺序排列的是()
A.冰、干冰、醋酸B.氮气、氧气、空气
C.水银、水、医用消毒酒精D.石墨、熟石灰、盐酸
7.
“以崇尚科学为荣,以愚昧无知为耻”。下列叙述不科学的是(   )
A.区别硬水与软水常用肥皂水B.未开启的地窖、窖井,不可冒然进入
C.加碘食盐的“碘”是指碘元素D.小孩经常咬铅笔,会导致铅中毒
8.
溴酸钠(NaBrO3)是某种冷烫精的主要成分,对头皮有刺激作用,使用不当会引起皮炎。溴酸钠中溴元素的化合价是(   )
A.+5B.+4C.+3D.-1
9.
下列实验室制取气体的设计中,可行的是(   )
A.加热氯酸钾和少量二氧化锰的混合物制取氧气B.盐酸跟氧化钙反应制取二氧化碳
C.稀硫酸跟石灰石反应制取二氧化碳D.稀硫酸跟铜反应制取氢气
10.
建设节约型社会,“从我做起”,我认为下列节约行为合理的是(  )
A.直接用工业废水浇灌农田B.用剩的药品倒入原瓶
C.吃经高温蒸煮后的变质大米D.用淘米水浇花
11.
净化水的方法有:①过滤②加明矾吸附沉降③蒸馏④消毒杀菌。要将混有泥沙的天然水净化成生活用的自来水,应选用的方法和顺序为
A.①②③④B.②①④③C.②①④D.①③④
12.
净化水的方法有:①过滤②加明矾吸附沉降③蒸馏④消毒杀菌。要将混有泥沙的天然水净化成生活用的自来水,应选用的方法和顺序为(   )
A.①②③④B.②④①③C.②①④D.①③④
13.
下列灭火措施不正确的是(   )
A.油锅着火——用锅盖盖灭B.图书馆着火——用二氧化碳灭火器扑灭
C.房屋着火——用高压水枪扑灭D.电视机着火——用水扑灭
14.
下图所示实验操作正确的是(  )
A.过滤B.倾倒液体C.检查气密性D.加热液体
15.
相同质量的H2、CH4和CO完全燃烧需要氧气的质量(  )
A.CO最多,H2最少B.H2最多,CH4最少
C.H2最多,CO最少D.CH4最多,CO最少

4.选择题(共6题)

16.对人体来说,低于36V的电压是安全的。
17.阅读理解

    Denali National Park, Alaska

    History

    Within Denali National Park, the Toklat River will always have a special significance, as it was the location where naturalist Charles Sheldon built a cabin and was so moved that he fought to preserve the land. He moved back east and spent nine years lobbying (游说)to create Alaska's first national park.

    When to Visit

    To avoid the crowds, visit in June, but keep in mind that there are up to 21 hours of sunlight in Alaska in summer. If it seems like a bit much for your taste, try visiting in late August or September.

    If you visit to climb Mount McKinley, May and early June are the best times to climb.

    Major Attractions

    It is difficult not to see Denali's largest attraction towering 20,320 feet high. Mount McKinley can even be seen up to 70 miles away on a clear day. If you brave the climb to the top, you will be rewarded with charming views of the Alaska Range.

    Sable Pass is a prime spot to view grizzly bears. Closed to off-road foot traffic, the area is popular for bears feeding on berries, roots, and even occasionally on other mammals.

    Beginning at just below the summit of Mount McKinley, Muldrow Glacier flows 35 miles through a gorge and across the tundra. Twice in the last hundred years, the Muldrow has surged (涌动), most recently in the winter of 1956-1957.

Accommodation

    Five campgrounds are located within the park, and many are open from late spring to early fall.Note: reservations are strongly recommended during summer. Riley Creek campground is open all year round, and all but two (Sanctuary and Wonder Lake) offer RV (可供居住的大篷车)sites.

    Also within the park are a few lodges (旅馆)—North Face Lodge, Denali Backcountry Lodge and Kentishna Roadhouse.

18.阅读理解

    Denali National Park, Alaska

    History

    Within Denali National Park, the Toklat River will always have a special significance, as it was the location where naturalist Charles Sheldon built a cabin and was so moved that he fought to preserve the land. He moved back east and spent nine years lobbying (游说)to create Alaska's first national park.

    When to Visit

    To avoid the crowds, visit in June, but keep in mind that there are up to 21 hours of sunlight in Alaska in summer. If it seems like a bit much for your taste, try visiting in late August or September.

    If you visit to climb Mount McKinley, May and early June are the best times to climb.

    Major Attractions

    It is difficult not to see Denali's largest attraction towering 20,320 feet high. Mount McKinley can even be seen up to 70 miles away on a clear day. If you brave the climb to the top, you will be rewarded with charming views of the Alaska Range.

    Sable Pass is a prime spot to view grizzly bears. Closed to off-road foot traffic, the area is popular for bears feeding on berries, roots, and even occasionally on other mammals.

    Beginning at just below the summit of Mount McKinley, Muldrow Glacier flows 35 miles through a gorge and across the tundra. Twice in the last hundred years, the Muldrow has surged (涌动), most recently in the winter of 1956-1957.

Accommodation

    Five campgrounds are located within the park, and many are open from late spring to early fall.Note: reservations are strongly recommended during summer. Riley Creek campground is open all year round, and all but two (Sanctuary and Wonder Lake) offer RV (可供居住的大篷车)sites.

    Also within the park are a few lodges (旅馆)—North Face Lodge, Denali Backcountry Lodge and Kentishna Roadhouse.

19.阅读理解

    Denali National Park, Alaska

    History

    Within Denali National Park, the Toklat River will always have a special significance, as it was the location where naturalist Charles Sheldon built a cabin and was so moved that he fought to preserve the land. He moved back east and spent nine years lobbying (游说)to create Alaska's first national park.

    When to Visit

    To avoid the crowds, visit in June, but keep in mind that there are up to 21 hours of sunlight in Alaska in summer. If it seems like a bit much for your taste, try visiting in late August or September.

    If you visit to climb Mount McKinley, May and early June are the best times to climb.

    Major Attractions

    It is difficult not to see Denali's largest attraction towering 20,320 feet high. Mount McKinley can even be seen up to 70 miles away on a clear day. If you brave the climb to the top, you will be rewarded with charming views of the Alaska Range.

    Sable Pass is a prime spot to view grizzly bears. Closed to off-road foot traffic, the area is popular for bears feeding on berries, roots, and even occasionally on other mammals.

    Beginning at just below the summit of Mount McKinley, Muldrow Glacier flows 35 miles through a gorge and across the tundra. Twice in the last hundred years, the Muldrow has surged (涌动), most recently in the winter of 1956-1957.

Accommodation

    Five campgrounds are located within the park, and many are open from late spring to early fall.Note: reservations are strongly recommended during summer. Riley Creek campground is open all year round, and all but two (Sanctuary and Wonder Lake) offer RV (可供居住的大篷车)sites.

    Also within the park are a few lodges (旅馆)—North Face Lodge, Denali Backcountry Lodge and Kentishna Roadhouse.

20.想一想,空格处应该填几?(从上到下填写)

7

2

11

16

9

4

13

18

5

{#blank#}1{#/blank#}

9

{#blank#}2{#/blank#}

21.如图,已知矩形ABCD中,R、P分别是DC、BC上的点,E、F分别是AP、RP的中点,当P在BC上从B向C移动而R不动时,那么下列结论成立的是(   )

5.填空题(共5题)

22.
在点燃条件下,2.6gC2H2与 7.2gO2 恰好完全反应,生成 6.6gCO2、1.8gH2O 和 xgCO.则 x=_____; 化学方程式为_____.
23.
下图中的①、②分别是氟元素、钙元素在元素周期表中的信息,A、B、C、D分别是四种粒子的结构示意图.请你回答:

(1)氟原子的核电荷数为_____,钙元素的相对原子质量为_____;
(2)X=_____;
(3)A、B、C、D中属于同种元素的粒子是_____(填序号);
(4)A粒子的化学性质与B、C、D中哪一种粒子的化学性质相似_____(填序号).
24.
用化学符号表示:
①两个二氧化硫分子_____;②保持氧气的化学性质的微粒_____;③直接构成氯化钠的微粒有_____和_____。
25.
少数不法厂家向液化石油气中掺入了二甲醚,二甲醚会对液化气罐的配件造成腐蚀,存在安全隐患,已知二甲醚的化学式是C2H6O,试计算:
(1)二甲醚中各元素的质量比_____;
(2)92g二甲醚中含氧元素_____克。
26.
为测定空气里氧气的含量,甲、乙、三个同学用如图所示的装置分别进行了实验探究.
(1)甲同学:点燃红磷立即伸入瓶中并塞上瓶塞.待红磷燃烧停止并冷却后,打开止水夹,观察到集气瓶中吸入水得体积约占集气瓶容积的  
(2)乙同学:用碳替代红磷,完成上述实验,发现集气瓶内并没有吸入水,其原因是  
(3)丙同学:向集气瓶中加入少量的  溶液,然后完成乙同学的实验,得到了与甲同学相同的实验结果.

6.实验题(共2题)

27.
根据下图所示的实验装置图回答:

(1)写出编号的仪器名称:①_____;②_____;
(2)实验室常用稀盐酸和石灰石反应制取CO2,该反应的化学方程式为:_____;制取并收集CO2,应选用的装置为_____(填序号)。
(3)如果要检验二氧化碳是否收集满,可将_____。
(4)如图所示装置可用来测量生成CO2的体积,其中在水面上放一层植物油的目的是:_____,植物油上方原有空气对实验结果_____(填“有”或“无”)明显影响.

(5)在加热氯酸钾和二氧化锰混合物制氧气实验中,混合物总质量100g,反应一段时间后,二氧化锰的质量分数由20%变为25%求氯酸钾的分解率。_____。(提示:分解率是分解的质量比原质量)
28.
如图

(1)写出一个用A装置制取O2的化学方程式。_____
(2)若用D装置采用排水法收集O2,请简述操作步骤。_____
(3)X仪器名称_____,C装置与B装置相比优点是_____
试卷分析
  • 【1】题量占比

    推断题:(1道)

    简答题:(1道)

    单选题:(13道)

    选择题:(6道)

    填空题:(5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:0

    5星难题:0

    6星难题:5

    7星难题:0

    8星难题:12

    9星难题:4