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原电池电极反应式的书写不仅是电化学教学的重点和难点,更是高考考查的重点和热点之一,现就如何正确书写电极反应式小结如下:一、原电池工作原理原电池反应属于氧化还原反应,区别于一般的氧化还原反应的是:电子转移不是通过氧化剂和还原剂之间的有效碰撞完成的,而是还原剂在负极上失电子发生氧化反应,电子通过外电路输送到正极上,氧化剂在正极上得电子发生还原反应,从
The original battery electrode reaction writing is not only the focus and difficulty of electrochemical teaching, but also one of the key points and hot spots for college entrance examination, now how to correctly write the electrode reaction summary is as follows: First, the original battery works The original battery reaction is oxidation Reduction reaction, different from the general redox reaction is: the electron transfer is not completed by the effective collision between the oxidant and the reducing agent, but the reducing agent in the negative electrode on the oxidation reaction occurs, the electron is delivered to the positive electrode through the external circuit , The oxidant in the cathode electron reduction reaction, from