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【免费下载】精编安徽省滁州市定远县育才学校20222023学年九年级下学期3月月考化学试题

  • 2026-02-22 00:51:43
【免费下载】精编安徽省滁州市定远县育才学校20222023学年九年级下学期3月月考化学试题

2022-2023学年度第二学期3月考试

化学试题

注意事项:

1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。

2.回答选择题时,选出每小题答案后,用铅笔把答题卡对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案标号。回答非选择题时,将答案写在答题卡上,写在试卷上无效。

3.考试结束后,本试卷和答题卡一并交回。

I卷(选择题)

一、选择题(12小题,每小题1分,满分12分)

1. 安全重于泰山!在学校采购的一批含 75%酒精的免洗消毒喷雾存放处,你建议应张贴的警示标识是

AB. C. D. 

2. 前者属于物理变化,后者属于化学变化的是

A. 水结成冰干冰升华B. 酒精挥发酒精燃烧

C. 酿制白酒人体呼吸D. 铁生锈电灯通电发光

3. 绿色城乡是我们的家园,为了减轻环境污染,你认为可向政府提出的建议是

①提倡使用化肥和农药,提高粮食产量

②采用绿色工艺,使工业原料尽可能转化为所需要的物质

③推广使用塑料袋,方便居民生活

④增加绿化面积,建设生态园林城乡

⑤冬季取暖,减少用户散煤的使用,降低二氧化硫、一氧化碳等有害气体的排放

A. ②③⑤B. ②④⑤C. ①②④D. ①③④

4. 化学知识有助于树立正确认识,选择科学生活。下列叙述不正确的是

A. 营养元素摄入不足或过量都不利于人体健康

B. 运动大量出汗后,要补充含无机盐的运动饮料

C. 缺铁会引起贫血,可以通过多食用动物肝脏进行补充

D焚烧含氯塑料会产生刺激性气体氯化氢等,污染空气

5. “宏观辨识与微观探析”是化学学科核心素养之一、某化学反应的微观示意图如图所示。下列有关说法错误的是

A. 反应前后原子的种类和数目都不变

B. 乙属于氧化物

C. 在化学反应中,分子可以分为原子,而原子不可再分

D. 该反应中生成物丙和丁的质量比为58

6. 下列选项中,推理不正确的是

A. 某物质RO2中燃烧后生成CO2H2O,则R中一定含CH元素,可能含O元素

B. 氧化物一定含有氧元素,含有氧元素的化合物一定是氧化物

C. 王亚平老师太空授课向水球中滴入染料,水球迅速变成蓝色,说明分子总在不停地运动

D. 化合物是由不同种元素组成的纯净物,所以只含一种元素的物质一定不是化合物

7. 根据下面实验过程得出的结论,不正确的是

实验过程

实验结论

A

红热的木炭放入盛有氧气的集气瓶中,剧烈燃烧、发出白光

氧气浓度大,木炭燃烧剧烈

B

CO2通入滴有紫色石蕊的水中,溶液由紫色变为红色

二氧化碳能与水反应生成碳酸

C

氢氧化钠固体置于空气中,表面很快变得潮湿并逐渐溶解

氢氧化钠固体有吸水性

D

向未知溶液中滴加氯化钡试液,有白色沉淀生成,再滴加稀硝酸,沉淀不消失

溶液中一定含有

A. AB. BC. CD. D

8. 关于仪器的使用,下列实验操作中正确的是

A. 倾倒液体称量固体

C. 检查气密性加热液体

9. 根据图示分析,下列说法正确的是

A. 镁属于非金属元素

B. 镁原子核外有3个电子层

C. 镁的相对原子质量为24.31g

D. 镁原子易得到电子变为Mg2+

10. 及时归纳梳理是一种很好的学习方法和习惯。以下归纳不正确的是

A.化学与安全

B.性质与用途

①在点燃氢气前,一定要检验它的纯度

②做铁丝燃烧实验时,集气瓶中预先加少量水或铺一层细沙

①水可做溶剂——水能溶解所有物质

②干冰用于人工降雨——利用二氧化碳能与水反应的性质

C.化学与社会

D.化学与农业

①回收利用废旧金属既可以保护环境,又节约资源和能源

②煤、石油、天然气是不可再生的化石燃料

①理想的制氢方法是用太阳能分解水

②农药波尔多液含有CuSO4不可用铁制容器存放

AAB. BC. CD. D

11. 如图所示是甲、乙两种固体的溶解度曲线,下列说法不正确的是

A. 甲中含有少量的乙时,可采用降温结晶的方法提纯甲

B. 时甲溶液溶质的质量分数比乙溶液的大

C. 甲的饱和溶液升温至时,溶液的溶质质量分数不变

D. 时,将等质量的甲、乙两物质分别加水配制成饱和溶液,甲溶液质量比乙溶液质量小

12. 下列图示与相应的文字描述完全相符合的是

A. 

B. 

C. 高锰酸钾

D. 

通过网盘分享的文件:【免费下载】精编安徽省滁州市定远县育才学校20222023学年九年级下学期3月月考化学试题

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  1. CONNECT:[ UseTime:0.000733s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001058s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000384s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000414s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000735s ]
  6. SELECT * FROM `set` [ RunTime:0.000351s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000897s ]
  8. SELECT * FROM `article` WHERE `id` = 469468 LIMIT 1 [ RunTime:0.000707s ]
  9. UPDATE `article` SET `lasttime` = 1771729479 WHERE `id` = 469468 [ RunTime:0.026831s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000470s ]
  11. SELECT * FROM `article` WHERE `id` < 469468 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000861s ]
  12. SELECT * FROM `article` WHERE `id` > 469468 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002177s ]
  13. SELECT * FROM `article` WHERE `id` < 469468 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001831s ]
  14. SELECT * FROM `article` WHERE `id` < 469468 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.009969s ]
  15. SELECT * FROM `article` WHERE `id` < 469468 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002284s ]
0.162398s