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在充分认识了化学反应在质与量的变化并且熟悉掌握了一定数量的化学反应之后,较为深入地讨论化学反应进行的快慢和程度是十分必要的,这不仅有助于我们全面地认识化学反应的本质及其规律,更有助于在中学化学所涉及的溶解与结晶、重要化工生产、弱电解质及水的电离、盐类水解等平衡体系中得到应用,充分体现理论联系实际的价值观念。一、挖掘教材内涵。明确重点、考点,化解难点
After fully understanding the change of chemical reaction in quantity and quantity and familiarizing with a certain amount of chemical reactions, it is necessary to discuss the speed and degree of chemical reaction in depth. This will not only help us to fully understand the chemical reaction. The nature and laws of the chemical are more conducive to the application of middle school chemistry to the dissolution and crystallization, important chemical production, weak electrolyte and water ionization, salt hydrolysis, and other balance systems, fully embodying the concept of theory in connection with actual values. First, tap the content of the textbook. Clear focus, test sites, resolve difficulties