Redoxreakciónak

Redoxreakciónak, more commonly known as redox reactions, are a fundamental type of chemical reaction characterized by the transfer of electrons between chemical species. This transfer results in a change in the oxidation states of the involved atoms. A redox reaction can be conceptually divided into two half-reactions: oxidation and reduction. Oxidation is the process where a species loses electrons, leading to an increase in its oxidation state. Conversely, reduction is the process where a species gains electrons, resulting in a decrease in its oxidation state. These two processes always occur simultaneously; one cannot happen without the other.

The term "redox" is a portmanteau of "reduction" and "oxidation." Identifying which species is oxidized and which is reduced involves assigning oxidation numbers to each atom in the reactants and products. An increase in oxidation number signifies oxidation, while a decrease signifies reduction. Redox reactions are ubiquitous in nature and in various industrial applications. Examples include the rusting of iron, the combustion of fuels, photosynthesis, cellular respiration, and the operation of batteries and fuel cells. Understanding redox reactions is crucial for comprehending many chemical and biological processes.