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化学要记忆的内容很多,要学好化学必须先过记忆关。记忆要讲究方法和技巧,才能收到事半功倍、记忆持久的效果。常用的记忆方法有: 1.口诀法 把要记忆的知识整理加工,形成口诀。如化合价口诀:一价氢氯钾钠银,二价氧镁钙钡锌;二四六硫二四碳,三铝四硅五氮磷;铁有二三铜一二,单质零价要记清。这方面的口诀很多,同学们要注意收集和整理。
There are many contents to be remembered in chemistry. To learn chemistry, you must first pass through memory. Memory must pay attention to methods and techniques in order to receive more effective results and lasting memory. The commonly used methods of memory are: 1. The oral method The knowledge to be memorized is processed and processed to form a mouth. Such as valence valence: monovalent sodium potassium hydrogen chloride, divalent magnesium oxide calcium germanium; two or four six sulfur two four carbon, three aluminum four silicon five nitrogen phosphorus; iron is two or three copper or two, single element zero price to remember . There are a lot of words in this area. Students should pay attention to the collection and arrangement.