A chemical reaction is a process that involves the rearrangement of the molecular or ionic structure of a substance, resulting in the formation of one or more new substances with different chemical properties.
Usage examples
Chemical reactions occur when two or more substances combine to form new substances with different properties.
Examples of chemical reactions include combustion (burning of fuel), photosynthesis (conversion of sunlight into energy in plants), and rusting of iron.
In a laboratory, chemical reactions can be observed by mixing different substances and observing changes in color, production of gas, or formation of a precipitate.
Many important industrial processes involve chemical reactions, such as the production of fertilizers, plastics, and pharmaceuticals.
The study of chemical reactions is central to fields like chemistry, biochemistry, and materials science.
Even the simplest flames are complicated, a dance of chemical reactions in which molecules interact in hundreds of different ways. (discovermagazine.com)
In our bodies, oxygen is constantly involved in chemical reactions in which electrons are shifted around to generate energy. (brightfocus.org)
This is a result of chemical reaction between the two ingredients, and it's perfectly safe to eat. (thekitchn.com)