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《化学反应及其能量变化》是高中化学开篇章,是初中化学走向高中化学的桥梁.本章介绍氧化还原反应和离子反应等化学理论及化学反应中能量变化的观点,都是高中化学教与学的重点.学习本章,不仅复习、巩固和应用初中化学知识和方法,而且为今后高中化学的学习构建出坚实的理论平台.所以,学好本章至关重要,学习时应从以下几方面入手.
“Chemical reaction and its energy change” is the opening chapter of high school chemistry. It is the bridge of junior high school chemistry to high school chemistry. This chapter introduces the chemical theory of redox reaction and ion reaction and the viewpoint of energy change in chemical reaction. It is all about high school chemistry teaching and learning. The focus of this chapter is to learn, not only to review, consolidate, and apply junior chemistry chemistry knowledge and methods, but also to build a solid theoretical platform for future high school chemistry study. Therefore, learning this chapter is very important. You should start from the following aspects when you study.