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在高中化学必修Ⅱ中,原电池部分既包括实验学习又包括化学原理学习,成为重点与难点,同学们在学习过程中突出反映出来的是两大问题,一是原电池的构成条件,二是电子或电流方向的判断。下面针对这两个问题和同学们谈谈我的看法。一、原电池的构成条件1.一个释放能量的氧化还原反应。这是原电池形成的内部必需条件,分两点分析。(1)为什么要是释放能量的反应:正如水能发电,只有水从高处流向低处的释放能量的过程中我们才能获得电
In the high school chemistry required II, the original battery part includes both experimental and chemical principles of learning, become the focus and difficulty, students in the learning process is highlighted in two major problems, one is the formation of the original battery conditions, the second is Electronic or current direction of the judge. Here are my questions about my classmates and students on these two issues. First, the composition of the original battery conditions 1. A redox release of energy. This is the formation of the original internal battery necessary conditions, divided into two points analysis. (1) Why a reaction to energy release: just as hydropower generates electricity, we can only get it when energy is released from high to low