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命题趋向一、氧化还原反应本部分内容是连接初、高中化学知识的枢纽。历年(每年均有考题)高考重点考查氧化反应和还原反应、氧化性和还原性、氧化剂和还原剂的概念,判断氧化还原反应中的电子转移的方向和数目,以及一般氧化还原反应方程式的配平,同时还考查氧化性、还原性能力的相对强弱和有关氧化还原反应的计算。今后命题会继续在上述几方面进行,同时与工农业生产、日常生活、科学实验等实际相结合。
Proposition I. Oxidation-Reduction Reactions This section is the hub for the connection of early and high school chemistry knowledge. The concept of oxidation and reduction reactions, oxidative and reductive properties, oxidants and reductants has been examined over the years (with questions each year) to determine the direction and number of electron transfer in redox reactions and the trim of the general redox reaction equation. At the same time, the relative strengths of the oxidizing and reducing ability and the calculation of the redox reaction were also examined. Propositions in the future will continue to be carried out in the above-mentioned aspects, and at the same time, they will be combined with actual production in industry and agriculture, daily life, and scientific experiments.