Answer:
Write the balanced chemical equation: Make sure the chemical equation is balanced to represent the correct ratio of reactants and products.
Identify the coefficients: In the balanced equation, coefficients represent the mole ratio of each substance. Compare the coefficients of the reactants to find the limiting reactant.
Calculate moles: Convert the given amounts of reactants to moles using their respective molar masses.
Compare ratios: Compare the actual mole ratio obtained from the calculations to the mole ratio from the balanced equation. The reactant that yields the smaller amount of product is the limiting reactant.
The excess reactant is the one that doesn't limit the reaction; there will be some leftover after the limiting reactant is completely consumed.
