Meaning & use
Reactants
Last updated
The starting substances that undergo chemical change and combine or interact in a chemical reaction.
See it in a sentence
In this experiment, the reactants are hydrogen and oxygen gas.
Increasing the temperature sped up the collision rate between reactants.
A note on using this word
In a chemical equation, reactants are conventionally written on the left side of the arrow, with the products on the right.
Words with a similar meaning
reagents
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
products
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