对Ｆｅ~（３＋）和Ｆｅ~（２＋）氧化─还原能力的讨论通渭县一中李俊文，杨晓东铁及其化合物的性质是中学化学教学中的重、难点之一。Ｆｅ（３＋）和Ｆｅ（２＋）的氧化一还原性也是历年高考的热点内容之一。由于学生对Ｆｅ（３＋）、Ｆｅ（２＋）、Ｆｅ的氧化─还原能力... Discussion on the oxidative-reducing ability of Fe 3+ and Fe 2+ The characteristics of Li Junwen and Yang Xiaodong iron and its compounds in Tongyi County are one of the most important and difficult aspects of chemistry teaching in middle schools. The oxidation-reducibility of Fe(3+) and Fe(2+) is also one of the hot topics in the college entrance examination over the years. Due to students’ oxidation-reduction capacity of Fe(3+), Fe(2+), Fe...