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2、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)试题


6、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)试题


D. twice older as her age
10. The ancient building, ________ back to the Ming Dynasty, is now a popular tourist attraction.
A. having dated B. dating C. being dated D. dated
11. It is essential that the cultural database ______ regularly to protect intangible heritage.
A. is updated B. be updated C. will be updated D. updates
12. The new technology allows us to ________ information in real-time, making communication much more efficient.
A. exchange B. spread C. release D. share


A.They like chocolate. B.They are busy every day.
C.The enjoy their everyday life. D.They are good at telling stories.
40.What’s the best title for the passage
A.A boy’s wonderful life B.An old woman’s colourful life
C.Two families become a big one D.Challenge turns into friendship
Once upon a time, there was a little vine (甜萄). She was young, but she grew well. In her eyes, she could do everything well all by herself.
As winter came, the wind became strong. The little vine had a bad time. She felt it would be difficult for her to grow or live anymore. Suddenly, the little vine heard a voice. A bigger vine was calling her, “Here, reach out and hold on to me.” However, the little vine did nothing. She was not sure whether (是否) she should listen to the bigger vine or not.


1、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)答案


5、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)答案


4、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)答案


5、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)答案


2、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)试题


1、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)答案


(4)图中收集气体的方法叫排水集气法,这是利用氧气不易溶于水也不与水反应的性质,该方法收集氧气时,导管口开始有气泡时,不宜立即收集,原因是开始排出的气体中含有空气,会导致收集到的氧气不纯。此外,还可根据氧气密度比空气大的性质,采用向上排空气法收集,集满氧气的集气瓶应瓶口向正放在桌面上;故填:排水;不易溶于水也不与水反应;开始排出的气体中含有空气,会导致收集到的氧气不纯;密度比空气大;向上排空气;上;
(5)实验完毕后,应先将导管移出水面,再熄灭酒精灯,其目的是防止水槽中的水倒流回试管,炸裂试管,故填:将导管移出水面;熄灭酒精灯;防止水槽中的水倒流回试管,炸裂试管;
(6)高锰酸钾受热分解生成锰酸钾、二氧化锰和氧气,文字表达式为:,故填:。
19.(1)检验生成物二氧化碳;
(2)防止高温熔融物溅落炸裂集气瓶底;剧烈燃烧,火星四射,发出大量的热,生成黑色固体;
(3)剧烈;
(4)活泼;都有氧气参加(合理即可)


27. 实验室用含杂质的锌(也称粗锌)与稀硫酸反应制取氢气,取10.0g含杂质的锌粒于烧杯中(所含杂质不溶于水,也不与稀硫酸反应),向其中加入71.0g稀硫酸,恰好完全反应后烧杯内剩余物质的质量为80.8g。试计算:
(1)生成氢气的质量是_____g;
(2)该粗锌中锌的质量分数为多少?(提示:)
文山州2024—2025秋季学期质量监测
化学试题卷 答案
第I卷 选择题(共40分)
一、选择题(本大题共20个小题,每小题2分,共40分。每小题只有一个选项符合题意,多选、错选或不选均不得分。请将符合题意的选项的序号在答题卡相应位置上涂黑)


3、[百师联盟]2025届高三二轮复习联考(一)1数学(百B)答案