论文部分内容阅读
化学用语是学习化学的工具,化学用语和常用计量是中学化学的重要组成部分,每年高考都会考查该部分知识。本部分内容虽不是难点,但学生不易得全分,主要原因是答题不规范。从历年高考理综化学试卷常见错误分析看出,学生答题不规范主要表现在以下几方面:1书写不规范;2化学方程式不配平或遗漏生成物或抄错;3书写有机物结构简式时多氢或少氢。出现以上情况并非说明学生化学基础知
Chemical terms are learning chemistry tools, chemical terms and common metrology is an important part of chemistry, high school entrance examination will examine each part of the knowledge. Although this section is not a difficult task, but students are not easy to get the full score, mainly because the answer is not standardized. According to the analysis of common mistakes of college entrance examination chemistry comprehensive examination in the past years, the non-standard of students’ answering is mainly manifested in the following aspects: 1 the writing is not standardized; 2 the chemical equation does not match or omit the generated or copied wrong; Hydrogen or less hydrogen. The above situation does not mean that the students know the basis of chemistry