近些年,宜昌市化学中考第六大题是计算题,第一小题是关于相对分子质量的计算,似乎成了一种惯例。所以在平时的教学检测中,我也保持了这种命题方式,关于相对分子质量的计算也都以填空的方式出现,只要求学生写结果。作为平时的检测,学生 In recent years, Yichang City Chemistry sixth sixth title is the calculation of the title, the first small topic is the calculation of relative molecular mass, seems to have become a practice. Therefore, in the usual teaching and testing, I also maintained this proposition, the calculation of the relative molecular mass also appear to fill in the blank, only require students to write the results. As a usual test, students