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试题答案

本文从以下几个角度介绍。

    1、唐山市2024-2024学年度高三年级摸底考试化学
    2、唐山市2024到2024年高三摸底考试化学
    3、唐山市2024-2024学年度高三摸底演练化学
    4、2024唐山市高三二模化学
    5、2024唐山市高三模拟考试化学
    6、唐山市2024至2024高三摸底
    7、2024年高三唐山二模化学答案
    8、唐山市二模2024年化学
    9、2024年高三唐山二模卷化学
    10、唐山市2024第二次模拟考试化学

2、唐山市2025-2026学年高三年级摸底考试政治试题


1、唐山市2025-2026学年高三年级摸底考试化学试题


18

Study is an important experience for everyone. After twenty years, I can still remember my first day at school. I was only 6 years old at that time. It was a very big room. I sat at the desk near the window, but I couldn’t see anything because the window was too high. There was a big map of the world on the wall and an old blackboard. I don’t think I was worried or afraid because I wanted to be a teacher at that time. There was another little boy next to me. He sat there and kept silent at first. Then he began to cry, because he didn’t want to stay there.
More and more students came in, but the boy didn’t stop crying. “Mom, I want to go home,” he cried again and again. Later, the teacher came in. She went to the little boy, and said something to him. I couldn’t hear what she said. Soon the boy stopped crying and began to smile. I thought the teacher was a superwoman and I admired her very much. I wanted to be a teacher like her.
Even to this day, I still don’t know what the teacher said to the little boy.
11．What’s the age of the writer now
12．Where did the writer sit
13．What was the writer’s dream job
14．How did the little boy next to the writer feel when he was in the classroom


5、唐山市2025-2026学年高三年级摸底 答案


6、唐山市2025-2026学年高三年级摸底考试语文答案


3、唐山市2025-2026学年高三年级摸底考试地理答案


2、唐山市2025-2026学年高三年级摸底考试历史答案


2、唐山市2025-2026学年高三年级摸底考试英语试题


5、唐山市2025-2026学年高三年级摸底考试物理答案


16. 研究活动：人类的生活离不开化学。
【任务一：厨房中的化学】
（1）白酒和白醋颜色相似，请你指出一种能区分出二者的简单方法__________。
【任务二：环境中的化学】
（2）垃圾分类从我做起，下列属于可回收垃圾的是__________ (填标号，可多选)。
A. 废旧书本 B. 生锈铁管 C. 矿泉水瓶 D. 腐烂水果
【任务三：食品包装中的化学】


(3) a 减小 不变
【详解】（1）根据盖斯定律，反应Ⅱ-反应Ⅰ＝水气变换反应，故水气变换反应的焓变＝－；
（2）T1温度时，HCOOH建立电离平衡：
，c(HCOO－)＝c(H＋)，故c(H＋)＝。
。
（3）t1时刻时，c(CO)达到最大值，说明此时反应Ⅰ达平衡状态。此时
故t1时刻c(HCOOH)＝1.0mol/L－0.70mol/L－0.16mol/L＝0.14 mol·L－1，K(Ⅰ)＝。t1时刻→反应Ⅱ达平衡过程，


3、唐山市2025-2026学年高三年级摸底考试生物答案