一、燃料电池的负极反应式的书写考查突破要点:1.计算负极燃料的核心元素(一般为C)化合价升高总值(乘以C数),即失电子数目。2.负极半反应方程式左边先写有机物,以及减去失电子的总数(即化合价升高总值,必须乘以变价的所有碳原子数!),方程式右边根据反应物介质先写CO_2或CO_3~(2-)。3.H~+或OH~-调平左右电荷数。酸性用H+调节,碱性用OH~-调节,氢氧不够水来凑,若是固 First, the fuel cell anode reaction writing test Breakthrough points: 1. Calculation of the core elements of anode fuel (generally C) valence valence (multiplied by the C number), the number of electron loss. 2. Negative half-reaction equation Write the organic matter on the left first, and subtract the total number of missing electrons (ie the total value of the valence increase, which must be multiplied by the total number of carbon atoms in the discount!), And then equation CO 2 or CO 3 ~ (2-). 3.H ~ + or OH ~ - leveling about the number of charges. Acid with H + regulation, alkaline with OH ~ - regulation, enough water to make hydroxide hydroxide, if solid