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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Similar factors may be derived for any pair of substances in any chemical equation.

From Textbooks • Feb. 14, 2019

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

This ΔH value indicates the amount of heat associated with the reaction involving the number of moles of reactants and products as shown in the 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

“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