alleryStart learning →What does the stoichiometry of a reaction describe?
AThe speed at which the reaction happens
BThe heat given out during the reaction
CThe states of matter of the substances
DThe relations between amounts of substances
Answer & Solution
Correct answer: D. The relations between amounts of substances
1. Stoichiometry comes from Greek words meaning element and measure.
2. It covers the quantitative relations between the amounts of reactants and products.
3. Those relations come from the coefficients of the balanced equation.
4. Reaction speed and heat output are separate properties and are not what stoichiometry means.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 4 "Stoichiometry of Chemical Reactions", section 4.3 Reaction Stoichiometry_
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