Also known as redox reactions, reduction-oxidation reactions are electron transfers composed of two semi-reactions that occur simultaneously:
Oxidation or loss of electrons.
Reduction or acquisition of electrons.
The elements that are part of redox systems are called the oxidant and reducer. When the reaction takes place, oxidants are reduced and reducers are oxidized. While comburents are oxidizing elements, the fuels are reducing elements.
Redox reactions are exothermic reactions; this means they produce heat. That’s why oxidizers are hazardous substances, and they must be handled under strict safety conditions. Accidents with oxidizing agents can cause serious fires and burns.
If reduction-oxidation reactions occur very quickly, they will generate an explosion.