The Equation Is a Ratio — and the Limiter Sets the Yield

Ten grams of hydrogen and sixty-four grams of oxygen. Hydrogen weighs less than a sixth as much, and hydrogen is the one left over. Grams do not decide anything in chemistry; moles do, and the balanced equation only ever speaks in moles. Watch the ledger convert, divide, and let one reactant — and one alone — throttle the product.

8 STEPS · 6 QUICK CHECKS · 2H₂ + O₂ → 2H₂O · 10.0 g H₂ · 64.0 g O₂ · v1