chemical change

Chemistry. a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance: The formation of rust on iron is a chemical change.
Compare physical change. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To chemical change's 21st Century Lexicon
Main Entry:  chemical change
Part of Speech:  n
Definition:  any change from one state (gas, liquid, solid) which is accompanied by alteration of the chemical composition; any process in which one or more substances are changed into one or more different substances; cf. physical change
Main Entry:  chemical change
Part of Speech:  n
Definition:  See physical change's 21st Century Lexicon
Copyright © 2003-2014, LLC
Cite This Source
Example sentences
Glycerin-absolutely a sugar, or a substance similar to sugar-comes out of the
  tallow in this chemical change.
As the wrigglers develop, the gelatinous outer membrane decomposes, perhaps
  triggered by a chemical change in the tadpoles.
The kiln is a crucible where chemical change takes place.
My resources say that the iodine with baking powder was a physical change, and
  the iodine with cornstarch was a chemical change.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature