reactant

[/riˈæktənt/]
nounpl: reactants
reagente
1. A substance that participates in a chemical reaction and is consumed or transformed in the process
In the equation 2H₂ + O₂ → 2H₂O, hydrogen and oxygen are the reactants.
Na equação 2H₂ + O₂ → 2H₂O, hidrogênio e oxigênio são os reagentes.
2. Any of the starting materials in a chemical process before the reaction occurs
The reactants must be properly measured and mixed for the experiment to succeed.
Os reagentes devem ser adequadamente medidos e misturados para o sucesso do experimento.
This is primarily a scientific/technical term used universally in chemistry education across English and Portuguese-speaking countries. It has no cultural variation and is used identically in academic and professional settings in both the USA and Brazil.
Synonyms / Sinônimos
reagentstarting materialsubstrate
Antonyms / Antônimos
product

Regional Variations

General Brazilian Portuguese
reagente
Most common term used in chemistry education and laboratories
Portugal
reagente
Same as Brazilian Portuguese; universally used in European Portuguese chemistry

Related Words

reactionproductchemical equationcatalystreagent
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