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有关化学方程式的计算是初中化学计算的一个重点,是各类考试中必不可少的内容。除了常规类型外,在近年的各类考试题中又出现了几种特殊的类型,现举例分析如下。
The calculation of chemical equations is a key point in junior high school chemistry calculations and is an indispensable part of various examinations. In addition to the conventional types, several special types have appeared in various examination questions in recent years. Examples are as follows.