论文部分内容阅读
在江苏省普通高中化学科目的考试说明中,对于化学实验基础要求学生“了解过滤、结晶、萃取、蒸馏等物质分离、提纯的常用方法,能对常见的物质进行分离和提纯.”对于这部分基础实验及操作的内容,除了在单项选择题中考查,更多地出现在19题实验综合题中.结合近几年高考以及模考中19题对基本操作的考查,笔者认为可以沿着“结晶-过滤-洗涤-干燥”这条线索展开复习.(2011江苏卷)19.高氯酸铵
In the examination notes of chemistry subject of general senior high school in Jiangsu Province, students are required to understand the basic principle of chemical experiment “to understand the common methods of separating and purifying substances such as filtration, crystallization, extraction and distillation, and to separate and purify common substances.” This part of the basic experimental and operational content, in addition to test in a single choice test, more in the 19 questions integrated test questions. Combined with the recent years college entrance examination and exam 19 questions on the basic operation of the test, I believe that along With the “crystal - filter - wash - dry” clue to start this review (2011 Jiangsu volume) 19 ammonium perchlorate