Leftovers

Welcome to the Reaction Kitchen. Every order is a recipe: a balanced equation. Draw a loop round one full recipe set of particles to cook it, and keep cooking until a reactant runs out. The one that's all gone is the limiting reactant: it decides how much product you make. Whatever is left over is in excess. Predict which reactant runs out first, change grams to moles, work out the mass of product and fix the customers' orders.