Definitions for chemical change
chem·i·cal change

Princeton's WordNetRate this definition:3.0 / 2 votes

1. chemical process, chemical change, chemical actionnoun

   (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

WiktionaryRate this definition:4.5 / 2 votes

1. chemical changenoun

   any process in which reactants are changed into products by the breaking or creation of chemical bonds

WikipediaRate this definition:1.0 / 1 vote

1. Chemical change

   Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. Some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. Understanding chemical changes is a major part of the science of chemistry. When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated. An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen. So much energy is released that the hydrogen gas released spontaneously burns in the air. This is an example of a chemical change because the end products are chemically different from the substances before the chemical reaction.

ChatGPTRate this definition:0.0 / 0 votes

1. chemical change

   A chemical change is a process or reaction where one or more substances are converted into one or more new and different substances. This change involves the breaking and making of chemical bonds, leading to changes in the composition of matter and often results in energy being absorbed or released. Unlike physical changes, chemical changes are typically irreversible. Examples of chemical changes include rusting, combustion, and digestion.

WikidataRate this definition:3.3 / 3 votes

1. Chemical change

   Chemical changes occur when a substance combines with another to form a new substance, called synthesis or, alternatively, decomposes into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. Some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. Understanding chemical changes is a major part of the science of chemistry. When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated. An example of a chemical change is the reaction between sodium and water to produce sodium hydroxide and hydrogen. So much energy is released that the hydrogen gas released spontaneously burns in the air. This is an example of a chemical change because the end products are chemically different from the substances before the reaction.

The Standard Electrical DictionaryRate this definition:4.0 / 1 vote

1. Chemical Change

   When bodies unite in the ratio of their chemical equivalents, so as to represent the satisfying of affinity or the setting free of thermal or other energy, which uniting is generally accompanied by sensible heat and often by light, as in the ignition of a match, burning of a candle, and, when the new compound exhibits new properties distinct from those of its components, a chemical combination is indicated. More definitely it is a change of relation of the atoms. Another form of chemical change is decomposition, the reverse of combination, and requiring or absorbing energy and producing several bodies of properties distinct from those of the original compound. Thus in a voltaic battery chemical combination and decomposition take place, with evolution of electric instead of thermal energy.

Matched Categories

1. • Chemistry
   • Natural Process

How to pronounce chemical change?

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How to say chemical change in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of chemical change in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of chemical change in Pythagorean Numerology is: 2

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=chemical change
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Chemical_Change
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Chemical_Change
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=chemical change
6. ^ The Standard Electrical Dictionary
   https://www.gutenberg.org/cache/epub/26535/pg26535-images.html#:~:text=chemical change