大热点1化学反应原理热点链接化学反应原理分为反应热、电化学、化学反应速率与化学平衡、水溶液中的离子平衡四部分。这四部分内容不仅是高考热点,而且是必考内容,占化学总分40%左右。1.反应热问题。考查方式都是利用盖斯定律计算后书写热化学方程式。2.电化学的重点方向是金属电池和燃料电池的电极反应,电解只在技术选考中出现过。呈现形式多是综合为一道大题,以一种 Hot 1 Chemical reaction principle Hot Links Chemical reaction principle is divided into four parts: reaction heat, electrochemical, chemical reaction rate and chemical equilibrium, ion balance in aqueous solution. This four-part content is not only a hot college entrance examination, but also the required content, accounting for about 40% of the total chemistry. Reaction heat problem Test methods are calculated using the Gass’s law after writing thermochemical equations. 2. Electrochemical focus is on the metal electrode and fuel cell electrode reaction, electrolysis only appeared in the technical selection test. Presented in the form of more integrated as a big problem, in one