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试题答案

本文从以下几个角度介绍。

    1、重庆八中高2024适应性月考六
    2、重庆八中2024高三第一次月考数学
    3、重庆市2024八中适应性月考六

6、重庆市重庆八中高2026届9月适应性月考(一)数学试题


5、重庆市重庆八中高2026届9月适应性月考(一)数学试题


39．Did Chen Ye give up his study during the time of learning skating
40．Why could Chen Ye be successful
阅读下面短文，根据短文内容，完成下列各题。
In 1981, the Chinese women’s volleyball team first stood at the top at the World Cup. And in 2019, it defended (保住) its World Cup crown with a record of 11 wins. The women’s volleyball team has been the pride of the Chinese people. To honor it, a film named Duo Guan or Leap in English has been made.
Based on the volleyball team’s stories, the film shows the struggles (奋斗) and achievements of the Chinese women’s volleyball team over the past 40 years. Gong Li, a world-famous Chinese actress, plays the role of Lang Ping, who has won the world championships (锦标赛) many times with the team and is now the team’s head coach. In order to play the role well, Gong came to the training site of the team, observing Lang’s words and deeds carefully.
Zhu Ting, captain of the Chinese women’s volleyball team, also plays a part in the film. It is the first time that she has taken part in the shooting (拍摄) of a film and she says it’s a little bit difficult. However, her playing volleyball is more difficult than being an actress. And it took her at least 10 years to rise to fame in the field.
The Chinese women’s volleyball team not only is a competitive sports team but also shows the spirit of struggling and never giving up.


)1.A.UFO
B.CPU
C.PRC
4.
5.
6.
五、


3、重庆市重庆八中高2026届9月适应性月考(一)数学答案


6、重庆市重庆八中高2026届9月适应性月考(一)数学答案


6、重庆市重庆八中高2026届9月适应性月考(一)数学答案


4、重庆市重庆八中高2026届9月适应性月考(一)数学答案


6、重庆市重庆八中高2026届9月适应性月考(一)数学试题


3、重庆市重庆八中高2026届9月适应性月考(一)数学答案


【详解】（1）加入Na2CO3溶液，发生的反应是，根据图像，CaCl2完全反应后生成CaCO3的质量为2g。
（2）A点Na2CO3溶液过量，溶液中含有原有的NaCl以及生成的NaCl，还有过量的Na2CO3，则溶质是NaCl和Na2CO3。
（3）根据CaCO3沉淀的质量计算，见答案。
10．（2025·四川省广安市）过氧化钠(Na2O2)可在呼吸面具中作供氧剂，久置易变质。为了测定某呼吸面具供氧剂中过氧化钠的质量分数，小吴同学进行了如下实验：向5.0g供氧剂样品中加入适量的水，使其充分反应，化学反应方程式为(无其它产生氧气的反应)，测得产生氧气的质量与时间关系如图所示：
(1)充分反应后，产生氧气的质量为 g。
(2)计算该供氧剂样品中过氧化钠的质量分数。(写出计算过程，6分)
【答案】(1)0.8


B．利用的氧化性对饮用水进行消毒
C．与石灰乳反应制备漂白粉及漂白粉使用时加水浸泡片刻的物质转化：
D．制备的路径之一：
4．下列关于氯及其化合物的叙述中，正确的是
①氯气的性质很活泼，它与氢气混合后立即发生爆炸
②实验室制取氯气时，多余的氯气可用氢氧化钠溶液吸收
③向久置的氯水中滴入紫色石蕊试液，溶液将先变红后褪色


3、重庆市重庆八中高2026届9月适应性月考(一)数学答案