化学计算能很好地考查思维能力,具有很好的选拔功能。预计2008年高考仍会对化学计算重点考查。现根据多年高考试题的特点,概括出化学计算常见题型和解题方法,并配合相应练习,希望对于同学们强化计算题解题技巧有所帮助。一、极端假设法又称平均值法,它是先将思路引向极端状况,? Chemical calculations can well examine thinking skills and have good selection capabilities. It is expected that the 2008 college entrance examination will still focus on chemical calculations. Now based on the characteristics of many years of high exam questions, summarize the common types of chemistry calculations and problem solving methods, and with the corresponding exercises, I hope for students to strengthen the calculation of problem solving skills help. First, the extreme hypothesis method is also called the average method. It is the first to lead the situation to extreme conditions.