

Ví dụ 2: Cho các cặp oxi hóa – khử được sắp xếp theo chiều tăng dần tính oxi hóa của dạng oxi hóa như sau: Fe 2+ /Fe, Cu 2+ /Cu, Fe 3+ /Fe 2+.Phát biểu nào sau đây là đúng? A. Cu 2+ oxi hóa được Fe 2+ thành Fe 3+.. B. Fe 3+ oxi hóa được Cu thành Cu 2+.. C. Cu khử được Fe 3+ thành Fe.. D. Fe 2+ oxi hóa được Cu thành Cu 2+.





FeO + O2 = Fe2O3 is a Synthesis reaction where four moles of Iron(Ii) Oxide [FeO] and one mole of Dioxygen [O 2] combine to form two moles of Hematite [Fe 2 O 3] Show Chemical Structure Image. Reaction Type. Synthesis. Redox; Redox (Oxidation-Reduction) Reaction. FeO + O2 = Fe2O3 might be a redox reaction.







Fe2O3 is insoluble in water and exhibits weak magnetic properties. In contrast, FeO is a black solid with a cubic crystal structure. It has a lower melting point of about 1,377 degrees Celsius and a density of approximately 5.745 grams per cubic centimeter. FeO is soluble in water and possesses stronger magnetic properties compared to Fe2O3.































When used as electrode materials in supercapacitors, the FeO(OH) nanorods exhibit much better capacitive properties of 392.6 F g −1 than red blood cell shaped α-Fe 2 O 3 microstructures (118.1 F g −1) at a current density of 1 A g −1, maintaining 91.4% and 75.5% of the initial capacity at a current density of 1 A g −1 after 500 cycles ...








