化学基本概念构建了中学化学的基础,是学好化学知识的基础。在高考中,基本概念多数以选择题的形式来考查,在非选择题中主要以问题的落脚点形式来体现,尤其是在化学用语(元素符号、化学式、电子式、结构示意图、电子排布式、结构简式、化学方程式、热化学方程式、离子方程式、电 The basic concept of chemistry constitutes the foundation of middle school chemistry and is the basis for learning chemistry knowledge. In the college entrance examination, most of the basic concepts are examined in the form of multiple-choice questions. In non-choice questions, they are mainly reflected in the form of the problem, especially in chemical terms (elemental symbols, chemical formulas, electronic formulas, schematic diagrams, electronic layouts). Formula, simple structure, chemical equation, thermochemical equation, ion equation, electricity