Definition of chemical reaction Chemical reaction
chem•i•cal re•ac•tion
We found 4 definitions of chemical reaction from 4 different sources.
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What does chemical reaction mean?
WordNet
Noun |
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| chemical reaction - (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water" | ||
| reaction | ||
| chemical action, chemical change, chemical process (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved | ||
| chemical science, chemistry the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions | ||
| addition reaction a chemical reaction in which one molecule is added to another | ||
| aldol reaction a reaction of aldehydes resulting in an aldol | ||
| chain reaction a series of chemical reactions in which the product of one is a reactant in the next | ||
| chemical equilibrium, equilibrium a chemical reaction and its reverse proceed at equal rates | ||
| chemical decomposition reaction, decomposition reaction, decomposition the analysis of a vector field | ||
| displacement reaction, displacement act of removing from office or employment | ||
| double decomposition, double decomposition reaction, metathesis a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB) | ||
| elimination reaction a chemical reaction in which a molecule decomposes to two different molecules | ||
| endothermic reaction a chemical reaction accompanied by the absorption of heat | ||
| exothermic reaction a chemical reaction accompanied by the evolution of heat | ||
| hydrolysis a chemical reaction in which water reacts with a compound to produce other compounds; involves the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion from the water | ||
| neutralisation reaction, neutralization reaction, neutralisation, neutralization action intended to nullify the effects of some previous action | ||
| oxidation, oxidisation, oxidization the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction | ||
| oxidation-reduction, oxidoreduction, redox a reversible chemical reaction in which one reaction is an oxidation and the reverse is a reduction | ||
| photochemical reaction a chemical reaction produced by the action of light | ||
| reducing, reduction loss of excess weight (as by dieting); becoming slimmer; "a doctor supervised her reducing" | ||
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Wiktionary 
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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chemical reaction
A change in which a substance is transformed into one or more new substances.
Wikipedia 
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Some reactions are very fast, and others are very slow. Some happen at different speeds, depending on temperature or other things. For example, wood does not react with air when it is cold, but if it is made hot enough, it will start to burn.
Some reactions give out energy. These are called "exothermic". For other reactions, energy must be put in to make them happen. These are called "endothermic".
