Cambridge IGCSE Chemistry · Syllabus 0620 · Stoichiometry
Limiting reactant
What is Limiting reactant?
The limiting reactant is the reactant that is completely used up first in a chemical reaction and therefore sets the maximum amount of product that can form; it is identified by dividing each reactant's amount in moles by its coefficient in the balanced equation and taking the smaller result.
This definition is part of the Stoichiometry chapter in Cambridge IGCSE Chemistry.