[学科网]2026届高三10月大联考化学(河北卷)试题于2025-10-16发布，目前免费查试卷答案网站已经汇总了[学科网]2026届高三10月大联考化学(河北卷)试题的各科答案和试卷，更多试卷答案请关注免费查试卷答案网站。

试题答案

本文从以下几个角度介绍。

    1、21届河北省高三年级11月份联合考试化学
    2、2024-2024学年河北省高三上学期12月份考试化学
    3、河北省2024联考化学答案
    4、河北省联考化学
    5、2024河北省名校大联考化学
    6、2024~2024学年河北省高三年级上学期10月联考
    7、河北2024高考化学卷子
    8、2024河北高考化学试卷及解析
    9、河北省联考化学答案
    10、2024年河北省三市联考卷化学

6、[学科网]2026届高三10月大联考政治(河北卷)试题


5、[学科网]2026届高三10月大联考化学(河北卷)试题


①She started playing table tennis for good health when she was 5.（when引导的时间状语从句）
②It’s amazing that she can do the best at such a young age and we are all proud of her.（it作形式主语）
11．例文
A Role Model Around Me
My dear fellow students,
Today I’m glad to introduce my role model to you. Her name is Quan Hongchan. She is a 14-year-old girl. She was born in a poor family in Zhanjiang on March 28, 2007. She began to receive diving training in 2014. This year, she won the gold medal in the 10-meter platform competition in the 19th Asian Games, Hangzhou.
It is her hard training that makes her so successful. She jumped from the platform into the water more than 400 times every day. She also has a strong will. She hopes to win the prize to have the money for her mother’s treatment.


Text 3
M: Madam, how would you like to pay We accept cash, credit cards, and mobile payment apps like Apple Pay and Ali Pay.
W: well, I happen to have my credit card with me, so I’ll pay with it.
Text 4
W: Alex, you don’t look refreshed. You stayed up late to finish the report, right
M: Yeah. You know, it is due today and the manager kept asking me about it yesterday.
W: No wonder. Do get some rest after work.


3、[学科网]2026届高三10月大联考数学(河北卷)试题


5、[学科网]2026届高三10月大联考地理(河北卷)试题


5、[学科网]2026届高三10月大联考化学(河北卷)试题


4、[学科网]2026届高三10月大联考历史(河北卷)试题


6、[学科网]2026届高三10月大联考历史(河北卷)试题


3、[学科网]2026届高三10月大联考物理(河北卷)试题


清洗试管内壁的银镜


6.C　常温下,可滑动的活塞将容器分成左右两室,左右两室压强相等,温度、压强相等时,气体的体积之比等于物质的量之比,则右室充入H2与O2的混合气体共3 mol,A正确。反应完毕后,恢复至原来温度,左室的体积变为原来的二倍,压强变为原来的一半,B正确。反应完毕后恢复至原来的温度,活塞恰好停在中间,说明氮气和右室剩余气体的物质的量相等,右室剩余1 mol气体,含有2 mol原子,C错误。剩余气体的物质的量为1 mol,2H2+O2 2H2O,假设氢气完全反应,则反应前n(H2)= mol,n(O2)=3 mol- mol,氢气和氧气体积之比=二者物质的量之比,为 mol=4∶5;假设氧气完全反应,则反应前n(O2)= mol,n(H2)=3 mol- mol,所以氢气和氧气的体积之比=二者物质的量之比,为 mol=7∶2,反应前H2与O2的体积比为4∶5或7∶2,D正确。


3、[学科网]2026届高三10月大联考生物(河北卷)答案