In which process is a new compound created from the combination of oxygen and another substance?

The process in which a new compound is created from the combination of oxygen and another substance is oxidation. Oxidation refers to a chemical reaction that involves the transfer of electrons, typically where a substance gains oxygen or loses electrons. This reaction can rearrange atoms and form new compounds. In various contexts, it is essential in biological processes, energy production, and is a primary reaction in combustion, where fuels combust in the presence of oxygen to produce heat and light alongside the formation of new compounds like carbon dioxide and water.

While combustion also involves a reaction with oxygen, it specifically refers to a rapid reaction with the release of heat and light, and typically produces energy rather than focusing solely on the formation of new compounds. Pyrolysis, on the other hand, is the thermal decomposition of materials at elevated temperatures in the absence of oxygen, which contrasts with the oxidation process. Calagenesis is not commonly recognized in the context of reactions involving oxygen in compounds. Thus, oxidation is the most accurate choice that describes the creation of new compounds through the interaction of oxygen and another substance.