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过氧化钠既是“碱金属”整章内容的重点又是本章中的难点,特别是与过氧化钠有关的计算类型较多,教师如能在课堂教学中帮助学生归纳整理,可以较好地帮助学生克服计算中的困难,有效地提高学习成绩.本章中与过氧化钠有关计算类型大致有以下几种:一、利用固体质量的差量的计算2Na2O
Sodium peroxide is both an important part of the “alkali metal” chapter and it is a difficult point in this chapter. In particular, there are many types of sodium peroxide-related calculations. If teachers can help students organize and classify in classroom teaching, they can help Students overcome difficulties in calculations and effectively improve their academic performance. The types of calculations related to sodium peroxide in this chapter are roughly the following: 1. Calculating the difference in solids quality using 2Na2O