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试题答案

本文从以下几个角度介绍。

    1、2024年名校联盟优质校高三大联考化学
    2、2018级高三校际联合考试化学
    3、名校联考联合体2024年秋季高一大联考化学
    4、22届高三大联考化学y学生用卷第1联
    5、2024化学高联
    6、2024化学高联时间
    7、联考联合体2024年高三12月联考化学
    8、名校联考联合体2024年春季高二期末联考化学答案
    9、全国大联考2024高三化学答案
    10、2024名校联盟优质校高三大联考化学

2、2026届U18联盟名校·高三起点大联考政治试题


4、2026届U18联盟名校·高三起点大联考化学试题


Sunday, June 16th
I had a really good day! Today our class went on a school trip to an art museum in our city. We met at the school gate at 7:00 a.m. and went to the art museum in our school bus.
After we got there, we watched a video first. It explained the paintings there carefully, and we learned a lot about the history and skills of painting. Then we spent hours enjoying some art exhibitions. There were many kinds of paintings from different periods (时代). One even has a history of hundreds of years. But we could still feel the feelings of the painter. The paintings were so beautiful that we took quite a lot of photos. In the afternoon, we bought some special gifts for our family and friends.
One thing I learned today: Art is long, life is short. It made me want to draw to record my life. All in all, today was such a meaningful and happy experience for me.
1．Where did the students go for the school trip
2．What did the students learn from the video
3．Does the writer like the painting with a long history


除了唱歌，你们俩都怎么打发业余时间？


2、2026届U18联盟名校·高三起点大联考化学答案


4、2026届U18联盟名校·高三起点大联考历史答案


6、2026届U18联盟名校·高三起点大联考数学答案


1、2026届U18联盟名校·高三起点大联考数学答案


2、2026届U18联盟名校·高三起点大联考历史试题


2、2026届U18联盟名校·高三起点大联考化学答案


时间/s 质量/g 压强/kPa 0 10 20 30 40 50 60 70
0.03 101 115 128 132 135 138 140 140
0.06 101 120 130 135 140 140 140 140
0.09 101 125 135 140 140 140 140 140
0.12 101 135 140 140 140 140 140 140
分析表格数据，得出的实验结论是 　在其他实验条件相同情况下，随着催化剂质量不断增加，过氧化氢分解速率越快　。
20．（10分）化学兴趣小组对木炭还原氧化铜反应生成的气体成分进行探究。


故答案为：D。
【分析】根据碳硫磷铁等物质在氧气中燃烧的现象分析，一是要注意白磷燃烧产生大量的白烟，即烟和雾的区别；二是要注意硫粉在空气中和氧气中燃烧的现象的区别。
5．（2024九上·东莞期末）在化学实验室内外一般不会张贴的标志是
A． 禁止烟火 B． 当心爆炸
C． 剧毒 D． 禁止拍照
【答案】D
【知识点】几种常见的与化学有关的图标；燃烧、爆炸、缓慢氧化与自燃


3、2026届U18联盟名校·高三起点大联考生物答案