[九师联盟]2026届高三9月开学考(角标含G)历史KG答案于2025-09-09发布,目前免费查试卷答案网站已经汇总了[九师联盟]2026届高三9月开学考(角标含G)历史KG答案的各科答案和试卷,更多试卷答案请关注免费查试卷答案网站。

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本文从以下几个角度介绍。

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6、[九师联盟]2026届高三9月开学考(角标含G)地理K-G试题


5、[九师联盟]2026届高三9月开学考(角标含G)生物K-G试题


A. They could keep healthy. B. They can do well in their study.
C. They will feel tired and unhappy. D. They don't like to do their homework.
E 篇
In many families, parents make rules for their children. Some children think the rules are too strict. But rules are important for children. They can help children know what they should do and what they shouldn't do.
For example, parents can make rules about when to get up, when to go to bed and when to do homework. They can also make rules about how to behave in public. Rules about using the Internet are also important. Parents should tell children not to spend too much time on the Internet and not to believe everything they see on the Internet.
However, when making rules, parents should also consider their children's feelings. They should talk with their children and listen to their opinions. Rules should be fair and reasonable. If children think the rules are fair, they will be more likely to follow them.
( )1. Why are rules important for children


A: Oh, I know that farm. It's not far from here. 78. ____________________________


3、[九师联盟]2026届高三9月开学考(角标含G)化学K-G答案


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6、[九师联盟]2026届高三9月开学考(角标含G)生物K-G答案


6、[九师联盟]2026届高三9月开学考(角标含G)物理K-G试题


3、[九师联盟]2026届高三9月开学考(角标含G)英语K-G答案


(3)a
(4)AD或AF;
【知识点】实验室常见的仪器及使用;氧气的实验室制法;气体制取装置的探究;万用瓶的使用
【解析】【解答】(1)①的名称是锥形瓶。
(2)过氧化氢在二氧化锰催化作用下生成氧气和水,;反应为固液不加热反应的发生装置B;氧气不易溶于水,排水法收集的气体较为纯净,故要收集较纯净的氧气收集装置选择C。
(3)氯气密度比空气大且不与空气的成分反应,用装置F收集氯气,则气体应长进短出,从a端通入。
(4)实验室用加热氢氧化钙和氯化铵固体混合物的方法来制取氨气(同时生成氯化钙和水),;反应为固体加热反应,发生装置选择A;氨气密度比空气小、极易溶于水,收集装置选择向下排空气法装置D或万用瓶装置F。


4.Na2SO3溶液与CaCl2溶液混合会生成难溶的CaSO3(Ksp=3.1×10-7),现将等体积的CaCl2溶液与Na2SO3溶液混合,若混合前Na2SO3溶液的浓度为2×
10-3 mol·L-1,则生成沉淀所需CaCl2溶液的最小浓度为  。
6.2×10-4mol·L-1
5.常温下,Ksp[Cu(OH)2]=2×10-20,计算有关Cu2+沉淀的pH。
(1)某CuSO4溶液中c(Cu2+)=0.02 mol·L-1,如果生成Cu(OH)2沉淀,应调整溶液的pH>  。
5
(2)要使0.2 mol·L-1 CuSO4溶液中Cu2+沉淀较为完全(使Cu2+浓度降至原来的千分之一),则应向溶液中加入NaOH溶液,使溶液的pH为  。


3、[九师联盟]2026届高三9月开学考(角标含G)化学K-G答案