How to Read Mole Ratios from Balanced Equations | Stoichiometry Explained

In this video, we explain how balanced chemical equations give mole ratios. Try the free chemical equation balancer here: https://reviewston.com/chemistry-tool... Many students think a balanced equation is just about making the number of atoms equal on both sides. But in mole calculations, the coefficients also tell us the reacting amounts in moles. We use the equation: 2H₂ + O₂ → 2H₂O This means: 2 mol H₂ reacts with 1 mol O₂ to form 2 mol H₂O. You will learn: • how to read mole ratios from a balanced equation • why H₂ : O₂ : H₂O = 2 : 1 : 2 • why a missing coefficient means 1 • how to scale the mole ratio • why coefficients give mole ratio, not mass ratio This is an important foundation for stoichiometry, limiting reagent, gas volume questions, titration calculations and percentage yield. Key idea: A balanced equation is like a chemical recipe. The coefficients tell us the mole ratio. Subscribe for more clear Chemistry explanations. @DavidTanChemistry #Chemistry #MoleRatio #Stoichiometry #ChemicalEquation #ALevelChemistry #OLChemistry #Reviewston