利用“列表法”分析金属与盐溶液反应后的滤液滤渣

Analysis of filtrate filter residue after reaction of metal with salt solution by “list method”

云南省初中学业水平考试中,有关金属与盐溶液反应后的滤液滤渣问题一直是学生的难点。结合金属活动性顺序,利用"列表法"分析,可将复杂问题简单化,将反应后的滤液滤渣成分直观展示出来,有效提高学生做题的准确性,特别对理解能力较弱的同学帮助很大。

in the junior high school level examination of Yunnan Province, the problem of filtrate filter slag after the reaction of metal with salt solution has always been a difficult problem for students.Combined with the order of metal activity and the analysis of " list method ", the complex problem can be simplified, and the composition of the filtrate filter after the reaction can be displayed intuitively, which can effectively improve the accuracy of the students to do the questions, especially for the students with weak understanding ability.