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reactant
(redirected from Reactants)

    Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
re·ac·tant  (r-ktnt)
n.
A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.
reactant [rɪˈæktənt]
n
(Chemistry) a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction Compare product [4]
reactant  (r-ktnt)
A substance participating in a chemical reaction, especially one present at the start of the reaction.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.reactant - a chemical substance that is present at the start of a chemical reaction
chemical, chemical substance - material produced by or used in a reaction involving changes in atoms or molecules
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In chemical equations the chemical reactions of the measurable relation of products to reactants is referred to as reaction stoichiometry The law of conservation of mass, the law of definite proportions and the law of multiple proportions support stoichiometry in the definite ratios of chemicals combined in reactions In chemical equations the chemical reactions of the measurable relation of products to reactants is referred to as reaction stoichiometry.
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