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氧化-还原反应(oxidation-reduction reaction,也作redox reaction)是化学反应前后,元素的氧化数有变化的一类反应。氧化还原反应的实质是电子的得失或共用电子对的偏移。自然界中的燃烧,光合作用,生产生活中的化学电池,金属冶炼,火箭发射等都与氧化还原反应息息相关。在无机反应中,有元素化合价升降,即电子转移的化学反应是氧化还原反应。在有机反应中,有机物引入氧或脱去氢的作用叫做氧化反应,引入氢或失去氧的作用叫做还原反应。有机氧化还原反应对研究有机物质化学变化十分重要,如何正确理解有机氧化还原反应及如何对有机氧化还原反应方程式进行配平,本人在学习和实践中进行了一些分析、总结和探究。
Oxidation - reduction reaction (oxidation - reduction reaction, also redox reaction) before and after the chemical reaction, a change in the number of elements of a class of oxidation reaction. The essence of the redox reaction is the gain or loss of electrons or the shift of the common electron pair. Natural combustion, photosynthesis, chemical batteries in production and life, metal smelting, rocket launchers are all closely related with the redox reaction. In the inorganic reaction, the elemental valence rises and falls, that is, the electron transfer chemical reaction is a redox reaction. In organic reactions, the role of organic matter into the oxygen or off the hydrogen is called the oxidation reaction, the introduction of hydrogen or oxygen is called the reduction reaction. Organic redox reaction is very important for the study of the chemical change of organic matter. How to correctly understand the organic redox reaction and how to balance the organic redox reaction equation, I have done some analysis, summarize and research in the study and practice.