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化学知识浩如烟海,已知元素一百多种,已知原子一千八百多种,已知化合物已达五百多万种!面对纷繁的物质世界,高中化学知识内容是十分丰富的,素有“多、难、乱”之说,“多”指实验现象多,概念多;“难”指知识抽象难懂;“乱”指结构、性质、制法、用途的规律性差,不像数学、物理规律性强。因此,要获得好的复习效果,就必须明确复习要求,重视复习方法,注重记忆的科学性。
Chemical knowledge is vast, known elements of more than 100 kinds of known atoms more than 1,800 kinds of known compounds has reached more than 5 million species! Facing the numerous material world, high school chemistry is very rich in content, prime “More ” refers to many experimental phenomena, many concepts; “difficult ” refers to the knowledge of abstract difficult to understand; “chaos ” refers to the structure, nature, system of law, The regularity of use is poor, unlike mathematics, physical laws and strong. Therefore, in order to obtain a good reviewing result, it is necessary to review the requirements clearly, attach importance to the reviewing method and pay attention to the scientificity of memory.