chemical reaction
noun
: a chemical change that occurs when two or more substances combine to form a new substance
Examples of chemical reaction in a Sentence
Recent Examples on the Web
The aircraft will rely on hydrogen-electric propulsion, in which hydrogen fuel cells generate electricity through a chemical reaction with oxygen.
—
Kaif Shaikh, Interesting Engineering, 2 Oct. 2025
The phenomenon is caused by a chemical reaction the algae produce when they are agitated or disturbed — if they are grabbed by a predator, for example, or experience a surge of movement from a wave or swimmer.
—Laura Paddison, CNN Money, 2 Sep. 2025
Rub the foil gently over the rust spots—the chemical reaction helps lift rust.
—Daley Quinn, Southern Living, 23 Aug. 2025
And that chemical reaction—burning carbon-rich organic matter with oxygen to make CO and release energy—is really the same thing that all aerobic life, all of Earth’s animals and plants, and so on, uses to drive its metabolism on a cellular level.
—Lee Billings, Scientific American, 21 Aug. 2025
See All Example Sentences for chemical reaction
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Kaif Shaikh, Interesting Engineering, 2 Oct. 2025
The phenomenon is caused by a chemical reaction the algae produce when they are agitated or disturbed — if they are grabbed by a predator, for example, or experience a surge of movement from a wave or swimmer.
—Laura Paddison, CNN Money, 2 Sep. 2025
Rub the foil gently over the rust spots—the chemical reaction helps lift rust.
—Daley Quinn, Southern Living, 23 Aug. 2025
And that chemical reaction—burning carbon-rich organic matter with oxygen to make CO and release energy—is really the same thing that all aerobic life, all of Earth’s animals and plants, and so on, uses to drive its metabolism on a cellular level.
—Lee Billings, Scientific American, 21 Aug. 2025
See All Example Sentences for chemical reaction
Cite this Entry
“Chemical reaction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chemical%20reaction. Accessed 5 Oct. 2025.
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