一、提出问题在《无机化学》或《无机及分析化学》教材中,都讲到了氧族元素硫的化学性质,教师一般是把铜与硫蒸气作用生成硫化亚铜的反应作为演示实验介绍给学生。反应方程式为:2Cu+S(?)Cu_2S。为了培养学生的实验技能和加强科学方法训练,我对这个实验进行了外向延伸和探究。方法 First, ask questions In the “Inorganic Chemistry” or “Inorganic and Analytical Chemistry” textbook, all talked about the chemical nature of oxygen elemental sulfur, the teacher is generally the role of copper and sulfur vapor generated cuprous sulfide reaction as a demonstration experiment student. The reaction equation is: 2Cu + S (?) Cu_2S. In order to develop students’ experimental skills and to strengthen scientific methodological training, I conducted an outward extension and exploration of this experiment. method