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【免费下载】精编江苏省泰州市姜堰区四校20232024学年九年级上学期10月联考化学试题

  • 2026-02-18 20:20:10
【免费下载】精编江苏省泰州市姜堰区四校20232024学年九年级上学期10月联考化学试题

一、选择题。第110题,每小题只有一个选项符合题意。每小题1分,共10分。第1115题,每小题有一个或两个选项符合题意。若正确答案包括两个选项,只选一个且正确得1分;多选、错选得0分。每小题2分,共10分。

1. 2021530501分,我国天舟二号货运飞船与天和核心舱完成自主快速交会对接,引起世界关注,下列过程中一定发生化学变化的是

A. 火箭转场B. 燃料加注C. 点火发射D. 自动对接

【答案】C

【解析】

【分析】根据物理变化和化学变化的定义来解答此题。

【详解】A、火箭转场,是从一个地方转换到另一个地方,没有任何变化,所以A错误;

B、燃料加注,是往火箭里面加燃料,没有任何变化,所以B错误;

C、点火发射,火箭里面的燃料燃烧,助推火箭升空,有新物质生成,一定产生化学变化,所以C正确;

D、自动对接,对接是部件与部件之间连接成一个整体,没有化学变化,所以D错误;

故选:C

【点睛】本题考查物理变化和化学变化的区分,熟练掌握即可。

2. 某同学在点燃蜡烛时,提出固体石蜡可能变成蒸气才能燃烧。就此看法而言,应属于科学探究环节中的(  )

A 提出问题B. 猜想与假设C. 进行实验D. 获得结论

【答案】B

【解析】

【分析】学探究的主要环节有提出问题→猜想与假设→制定计划(或设计实验)→进行实验→收集证据→解释与结论→反思与评价→拓展与迁移,据此结合题意进行分析判断。

【详解】根据题意,某同学在点燃蜡烛时,提出固体石蜡可能变成蒸气才能燃烧,提出固体石蜡可能变成蒸气才能燃烧是猜想与假设环节。              A、“某同学在点燃蜡烛时,提出固体石蜡可能变成蒸气才能燃烧”这一过程,属于科学探究环节中的猜想与预测,不是提出问题,故选项错误。              B、“某同学在点燃蜡烛时,提出固体石蜡可能变成蒸气才能燃烧”这一过程,属于科学探究环节中猜想与预测,故选项正确。              C、“某同学在点燃蜡烛时,提出固体石蜡可能变成蒸气才能燃烧”这一过程,属于科学探究环节中的猜想与预测,不属于进行实验,故选项错误。              D、“某同学在点燃蜡烛时,提出固体石蜡可能变成蒸气才能燃烧”这一过程,属于科学探究环节中的猜想与预测,不是获得结论,故选项错误。              故选B。

3. 下列物质中,属于纯净物的是(  )

A. 洁净的空气B. 海水C. 液氧D. 啤酒

【答案】C

【解析】

【详解】A、由同种物质组成的是纯净物,由不同种物质组成的是混合物。洁净的空气由不同种物质组成,属于混合物,此选项不符合题意;

B、海水中含有水及一些可溶性和难溶性的杂质,属于混合物,此选项不符合题意;

C、液氧由同种物质组成,属于纯净物,此选项符合题意;

D、啤酒中含有酒精、水,属于混合物,此选项不符合题意。

故选C。

【点睛】解答此题主要看物质是否由同种物质组成。

4. 实验中既能做反应容器,又能直接加热的仪器是

A. 烧杯B. 试管C. 量筒D. 集气瓶

【答案】B

【解析】

详解】A、烧杯可作反应容器,但不能直接燃烧,需要垫石棉网,不符合题意;

B、试管可作反应容器,又能直接加热,符合题意;

C、量筒不能作反应容器,也不可直接加热,不符合题意;

D、集气瓶可作反应容器,但不能加热,不符合题意。故选B。

5. 鉴别三瓶无标签的无色的氧气、二氧化碳、空气最简便的方法是用

A. 燃着的木条B. 带火星木条C. 澄清石灰水D. 闻气味

【答案】A

【解析】

【详解】试题分析:鉴别物质应抓住物质性质的不同,氧气具有助燃性,能使燃着的木条燃烧更旺,二氧化碳既不燃烧,也不支持燃烧,能使燃着的木条熄灭,故选A

考点:氧气、二氧化碳、空气的化学性质

6. 通过燃烧除去密闭容器中空气中的氧气,且不产生其它气体,可选用的物质是

A. 铁B. 蜡烛C. 木炭D. 红磷

【答案】D

【解析】

【详解】试题分析:除去空气中的氧气且不产生气体的物质为红磷,铁丝在空气中不燃烧、蜡烛在空气中燃烧产生二氧化碳等气体、木炭在空气中燃烧混有二氧化碳;故答案选择D

考点:空气成分

7. 下列物质的性质与所对应的用途没有关系的是

A. 氧气助燃——焊接金属B. 稀有气体的性质稳定——作保护气

C. 石墨导电——可作电极D. 二氧化碳能与水反应——人工降雨

【答案】D

【解析】

【详解】A、乙炔(C2H2)跟氧气发生氧化反应,产生氧炔焰,氧炔焰可用来切割焊接金属。故性质与所对应的用途有关系;

B、作保护气化学性质必须稳定,因为稀有气体化学性质稳定可作保护气;性质与所对应的用途有关系;

C、由于石墨具有导电性,通常可用于作电极。性质与所对应的用途有关系;

D、固体二氧化碳(干冰)升华时能吸收大量的热,可使空气中的水蒸气凝结成小液滴,形成雨水下降,并不是二氧化碳与水反应的结果;性质与所对应的用途没有关系;

故选D。

【点睛】物质的性质在一定程度上决定了物质的用途,在判断物质的用途时,首先要考虑物质相关的性质,所以掌握物质的性质以及性质和用途的关系是解题的关键。

8. 下列实验操作正确的是

A. 取用粉末固体B. 取走蒸发皿

C. 读取液体体积D. 添加酒精

【答案】A

【解析】

【详解】A、取用粉末状药品,试管横放,用药匙或纸槽把药品送到试管底部,图中所示操作正确。

B、正在加热的蒸发皿温度较高,为防止烫伤手,不能用手直接拿热的蒸发皿,应用坩埚钳夹取,图中所示操作错误。

C、量取液体时,视线与液体的凹液面最低处保持水平,图中仰视刻度,操作错误。

D、使用酒精灯时要注意“两查、两禁、一不可”,禁止向燃着的酒精灯内添加酒精灯,图中所示操作错误。

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  1. CONNECT:[ UseTime:0.000983s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001617s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001777s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000723s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001699s ]
  6. SELECT * FROM `set` [ RunTime:0.000888s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001527s ]
  8. SELECT * FROM `article` WHERE `id` = 469120 LIMIT 1 [ RunTime:0.025747s ]
  9. UPDATE `article` SET `lasttime` = 1771479028 WHERE `id` = 469120 [ RunTime:0.025837s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.005041s ]
  11. SELECT * FROM `article` WHERE `id` < 469120 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002944s ]
  12. SELECT * FROM `article` WHERE `id` > 469120 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003307s ]
  13. SELECT * FROM `article` WHERE `id` < 469120 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.033187s ]
  14. SELECT * FROM `article` WHERE `id` < 469120 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.017417s ]
  15. SELECT * FROM `article` WHERE `id` < 469120 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.016064s ]
0.318361s