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本单元与将要学习的第五单元同属化学基本理论中的化学反应原理部分,是无机化学的重要内容。包括一般化学反应的平衡、弱电解质的电离平衡、难溶强电解质的沉淀溶解平衡、络合反应的化学平衡、氧化还原平衡。各类平衡遵循同样的道理,但由于各类平衡有自己的特点,在讨论时又各有侧重,学习时应注意它们之间的联系和区别。重点是:明确各类平衡的概念、平衡常数的意义;掌握平衡移动的原理及有关计算。
The unit and the fifth unit to be learned belong to the chemical reaction theory part of the basic theory of chemistry, is an important part of inorganic chemistry. Including the general chemical reaction equilibrium, weak electrolyte ionization equilibrium, poorly soluble electrolyte precipitation equilibrium, complexation reaction chemical equilibrium, redox balance. All kinds of balance follow the same principle, but because of the various types of balance have their own characteristics, they have focused on the discussion, learning should pay attention to the connection between them and the difference. The main points are: to clarify the concept of various types of balance, to balance the meaning of constants; to master the principle of balanced movement and related calculations.