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chemical equation

British

noun

a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Changing the direction of a chemical equation essentially swaps the identities of “reactants” and “products,” and so the equilibrium constant for the reversed equation is simply the reciprocal of that for the forward equation.

From Textbooks • Feb. 14, 2019

Identifying the limiting and excess reactants for a given situation requires computing the molar amounts of each reactant provided and comparing them to the stoichiometric amounts represented in the balanced chemical equation.

From Textbooks • Feb. 14, 2019

These elementary reactions occur precisely as represented in the step equations, and they must sum to yield the balanced chemical equation representing the overall reaction:

From Textbooks • Feb. 14, 2019

It is common practice to use the smallest possible whole-number coefficients in a chemical equation, as is done in this example.

From Textbooks • Feb. 14, 2019

“I used to know any chemical equation or macromolecular synthesis without hesitation. But with age, I am becoming less useful.”

From "The Last Cuentista" by Donna Barba Higuera

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023