Meaning & use
reactant
A substance that takes part in and undergoes change during a chemical reaction.
See it in a sentence
In this experiment, vinegar and baking soda are the two reactants that produce carbon dioxide.
Chemists must measure each reactant precisely to predict how much product will form.
A note on using this word
In a balanced chemical equation, reactants appear on the left side of the arrow and products on the right.
Words with a similar meaning
reagent
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
Make it your own
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