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一、回答下列问题 1、化学反应是仅有化学物质(中性分子或荷正电或负电的离子)参加的反应。电化学反应是既有化学物质,又有自由电子参加的反应。它包含着氧化和还原两个(或更多个)分反应,反应向释放电子的方向进行,就是氧化;若向吸收电子的方向进行,就是还原。 2、25℃时各电极在水溶液中的标准平衡电极电位按其数值大小排列而成的表称为电动序(EMF,或称电位序和电化序)。
First, to answer the following questions 1, the chemical reaction is only chemical substances (neutral molecules or positive or negative ions) to participate in the reaction. Electrochemical reactions are both chemical and free-electron reactions. It contains oxidation and reduction of two (or more) reaction, the reaction to the direction of the release of electrons, that is, oxidation; if the absorption of electrons in the direction, is the reduction. 2,25 ℃ when the electrode in the aqueous solution of the standard equilibrium electrode potential according to the value of the size arranged in a table called electromotive order (EMF, or potential and electrochemical).