alleryStart learning →In a chemical equation, the substances undergoing reaction are called:
AReactants
BProducts
CCatalysts
DSolvents
Answer & Solution
Correct answer: A. Reactants
1. A chemical equation is written with two sides separated by an arrow.
2. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation.
3. The substances generated by the reaction are called products, on the right side.
4. A catalyst speeds a reaction without being consumed, so it is neither.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 4 'Stoichiometry of Chemical Reactions', sections 4.1-4.5_
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