论文部分内容阅读
电化学知识是理论部分的一个重要内容,也是历年高考考查的一个重点。综合历年来高考考查的情况归纳如下:一、原电池的判定判定方法:①依据有无外接电源;依据原电池的构成条件。②多池相连但无外接电源,有自发进行的氧化还原反应的一池为原电池,其他为电解池。例:(2007重庆,11)如图所示,
Electrochemical knowledge is an important part of the theoretical part, and it is also a key point in the examination of the college entrance examination. Comprehensive examination of the college entrance examination over the years summarized as follows: First, the determination of the primary battery to determine the method: 1 based on the availability of external power; according to the original battery composition conditions. 2 Multiple cells connected but no external power supply, a pool of spontaneous redox reactions is primary cell, others are electrolytic cells. Example: (2007 Chongqing, 11) As shown in the picture,