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有些关于化学式的计算题,如果按常规解法则费时费力,且容易出错.若掌握一些技巧去解这些题,则常可快速准确求解.下面举例说明几种方法技巧. 一、估算法
Some calculation questions about chemical formulas are time-consuming and error-prone if they are solved by conventional methods. If you have some skills to solve these problems, you can often quickly and accurately solve them. Here are some examples to illustrate some of the method techniques. First, the estimation method