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化学式是一种重要的化学符号。无论是学习化学，还是解化题，它都具有举足轻重的作用。下面根据自己的教学体会概括一下确定化合物化学式的常用方法。一、根据化合物中各元素的化合价确定其化学式此法确定化学式的一般步骤是：①计算出要求的化合物中各元素的化合价；②写出组
Chemical formula is an important chemical symbol. Whether it is learning chemistry or solving problems, it plays a decisive role. Here is a summary of common methods for determining the chemical formula of a compound based on your own teaching experience. First, determine the chemical formula according to the valence of each element in the compound The general steps for determining the chemical formula by this method are: 1 Calculate the valence of each element in the required compound; 2 Write the group