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极值法是一种重要的数学思想和分析方法,融元素化合物、有机物知识、数理分析、逻辑推理、分析综合、拆解重组于一体,是一种层次较高的能力型试题.化学上所谓“极值法”就是对数据不足而感到无从下手的计算或混合物组成判断的题目,采用极端假设(即为某一成分或者为恰好完全反应)的方法以确定混合体系中各物质的名称、质量分数、体积分数,这
The extremum method is an important mathematical thought and analytical method. It is a kind of high-level ability-typed test questions, integrating elements of chemical compounds, knowledge of organic matter, mathematical analysis, logical reasoning, analysis and synthesis, disassembly and reorganization. “Extremum Method ” is the problem of judging the composition or composition of a compound or mixture that is out of reach with insufficient data. The extreme hypotheses (that is, a certain component or exactly) are used to determine the names of the substances in a mixed system , Mass fraction, volume fraction, this