化学平衡与电离平衡历来是高考的热点,也是学习的难点.现结合在学习过程中存在的问题,对高考考点及高考典型试题的解题方法进行解读和归纳.要点1化学反应速率1)基本概念单位时间内反应物或生成物浓度的变化量来表示反应速率.表达式:v=Δc/Δt(单位mol·L-1·min-1或mol·L-1·s-1).2)影响化学反应速率的外部因素主要有:浓度温度、压强、催化剂等. Chemical equilibrium and ionization balance have always been the focus of college entrance examination is also difficult to learn.Combined with the existing problems in the learning process, the college entrance examination test centers and college entrance examination typical problem solving methods to interpret and summarize.First, a chemical reaction rate 1) basic The reaction rate is expressed as the change in concentration of a reactant or product per unit of time in the concept: v = Δc / Δt in mol·L -1 min -1 or mol·L -1 s -1 ) External factors affecting the chemical reaction rate are: concentration temperature, pressure, catalyst and so on.