An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species.
An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. Redox reactions are common and vital to some of the basic functions of life, including photosynthesis, respiration, combustion, and corrosion or rusting.
2CaO + 2MgO + FeSi → Fe + 2Mg + Ca2SiO4
Nhiệt độ: 1500°C
Phương trình số #2
Ca(OH)2 + H2O + 6H2O2 → CaO2. 8H2O
Phương trình số #3
3S + 2B → B2S3
Nhiệt độ: > 600