九年义务教育三年制初中《化学》[1],学生实验十,第4个实验习题,用实验证明铁、铜、铝这三种金属的活动性顺序《教师教学用书》[2]的实验方案是：可将三种金属分别放入稀硫酸里,铜不反应,得出三种金属中,铜最不活泼。将铁放入氯化铝溶液,铝放入氯化铁溶液,看哪个能发生置换反应 Nine years of compulsory education three-year junior high school chemistry [1], students experiment ten, fourth experimental exercises, experimentally proved iron, copper, aluminum activity sequence of these three kinds of teaching materials “teaching book” [2] Experimental program is: the three metals can be placed in dilute sulfuric acid, copper does not react, come to three kinds of metal, the most inactive copper. The iron into the aluminum chloride solution, aluminum into the ferric chloride solution to see which can occur replacement reaction