化学 · GCSE · Bonding & Structure
Giant covalent structures
gcse-chem-5-2-2-6免费2:58Heddy 星级 7 颗中 3 颗,未达标从 youtube-nocookie.com 播放。按下播放之前,YouTube 不会写入任何 cookie。
你需要知道的
- In giant covalent structures every atom is bonded to its neighbours.
- Diamond is very hard because each carbon makes four bonds.
- Graphite conducts because each carbon has one free electron.
这个短片讲了
0:30–3:34Relative atomic massgcse-chem-5-1-1-63:34–5:24Naming compounds and writing equationsgcse-chem-5-1-1-1b5:53–6:41Mixtures and how to separate themgcse-chem-5-1-1-26:41–8:30How the model of the atom developedgcse-chem-5-1-1-38:30–10:48Electronic structuregcse-chem-5-1-1-712:43–14:41How the periodic table developedgcse-chem-5-1-2-214:41–15:18Group 0: the noble gasesgcse-chem-5-1-2-415:18–18:16Group 7: the halogens and their trendsgcse-chem-5-1-2-6a18:16–20:01Group 1: the alkali metalsgcse-chem-5-1-2-520:01–22:52States of matter and the forces between particlesgcse-chem-5-2-2-122:52–24:00The three types of chemical bondgcse-chem-5-2-1-124:00–25:06Covalent bonds and small moleculesgcse-chem-5-2-1-4a26:05–27:14Properties of metals and alloysgcse-chem-5-2-2-727:23–29:19Properties of ionic compoundsgcse-chem-5-2-2-329:19–30:06Properties of small moleculesgcse-chem-5-2-2-430:06–33:04Giant covalent structuresgcse-chem-5-2-2-633:04–34:00Graphene and fullerenesgcse-chem-5-2-3-334:00–34:23Polymers as very large moleculesgcse-chem-5-2-2-538:06–38:51Relative formula massgcse-chem-5-3-1-239:48–43:03Reacting masses from equationsgcse-chem-5-3-2-243:49–45:44The reactivity seriesgcse-chem-5-4-1-245:44–47:53Oxidation and reduction as electron transfergcse-chem-5-4-1-447:53–50:00Neutralisation and making saltsgcse-chem-5-4-2-250:00–50:45The pH scale and neutralisation in terms of ionsgcse-chem-5-4-2-454:06–55:40Extracting metals by electrolysisgcse-chem-5-4-3-355:40–57:15Electrolysis of solutions in watergcse-chem-5-4-3-457:15–59:30Exothermic and endothermic reactionsgcse-chem-5-5-1-159:30–62:16Bond energy calculationsgcse-chem-5-5-1-3也讲到Uncertainty in measurementsgcse-chem-5-3-1-4也讲到Concentration in grams per cubic decimetregcse-chem-5-3-2-5也讲到Limiting reactantsgcse-chem-5-3-2-4也讲到Electrolysis: the processgcse-chem-5-4-3-1Heddy 星级每个短片在给学生看之前都要通过七项检查:来源可靠、在星图上、内容准确、主题集中、易于观看、适合孩子,以及学生证明有用。3/7, 未达标
- 可信来源 · 已通过. 创作者本人上传,链接有效,可以在这里播放。
- 对准知识点 · 待评. 老师看过:它主要讲的就是这个知识点。
- 符合考纲 · 待评. 内容准确,符合现行英国考纲。
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- 适合青少年 · 待评. 适合 11 到 16 岁的学生,没有推销。
- 有成效 · 待评. 由我们的学生评出:看了学得会、觉得有帮助、愿意看到最后。
我们的学生
Heddy 星级怎么评学生人数还不够
我们自己学生的回答,第 7 颗星“有成效”就由这些决定。为什么选它
A long whole-paper AQA Chemistry Paper 1 revision run-through, useful for Year 11 revision; later chapters after the combined-science marker are triple-only.