Here’s how to balance the chemical equation Fe + O₂ → Fe₂O₃ using a simple step-by-step grid method.
Practice more balancing equations and get additional balancing help at:
www.breslyn.org/balancing
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How to Balance Fe + O2 = Fe2O3
Here’s how to balance the chemical equation Fe + O₂ → Fe₂O₃ using a simple step-by-step grid method. Practice more balancing equations and get additional balancing help at: www.breslyn.org/balancing
Open this video on Wayne Breslyn (Dr. B.)Decimal Coefficients When Balancing Chemical Equations?
When we balance chemical equations, we sometimes end up with a coefficient that’s a decimal. For example, in the combustion of ethane (C₂H₆), you might write: C₂H₆ + 3.5O₂ → 2CO₂ + 3H₂O. That 3.5 can look strange — how can you have half a molecule of oxygen...
Open this video on Wayne Breslyn (Dr. B.)How to Draw to Structures (NEW for 2025) | Dr. B's Five Step Method
Learn how to draw Lewis Structures quickly and accurately in five simple steps! In this *new, updated 6-minute tutorial for 2025*, I’ll break it down step-by-step using clear visuals and examples so you can finally understand what’s really happening with bo...
Open this video on Wayne Breslyn (Dr. B.)Can we have fractional coefficients when balancing chemical equations?
In this video, we’ll look at the combustion of ethane (C₂H₆) and answer a question that comes up all the time: How can you have something like 7/2 O₂ in a balanced chemical equation? It feels strange at first — how can you have half a molecule? But the key ...
Open this video on Wayne Breslyn (Dr. B.)How to Determine the Excess Reactant Left Over in a Limiting Reactant Problem
Learn how to calculate the amount of excess reactant remaining after a chemical reaction. Building on our previous video about identifying limiting reactants, this tutorial walks you through the key steps of determining exactly how much of the excess reacta...
Open this video on Wayne Breslyn (Dr. B.)How to Find the Excess Reactant (see full Playlist!)
In a limiting reactant problem, we start with a certain amount of each reactant, but what happens to the excess reactant? In this video, we go step by step to determine how much of the excess reactant is left over after the reaction. ▶ Limiting Reactant Pla...
Open this video on Wayne Breslyn (Dr. B.)How to Balance C2H6 + O2 → CO2 + H2O | Ethane Combustion Reaction
YouTube Description: Learn step by step how to balance C2H6 + O2 → CO2 + H2O (ethane combustion). This tutorial explains how to correctly add coefficients so the number of atoms is the same on both sides of the chemical equation. Essential Tips for Balancin...
Open this video on Wayne Breslyn (Dr. B.)✅ How to Balance Fe + O2 → Fe2O3 | Iron + Oxygen Reaction
Learn step by step how to balance Fe + O2 → Fe2O3 (iron reacting with oxygen). This tutorial explains how to correctly add coefficients so the number of atoms is the same on both sides of the chemical equation. Essential Tips for Balancing Equations: ✅ Onl...
Open this video on Wayne Breslyn (Dr. B.)Step by Step Balancing Al + O2 → Al2O3 | Aluminum + Oxygen Reaction
In this video, we go step by step to balance the equation Al + O2 → Al2O3. This is a common synthesis (combination) reaction where aluminum reacts with oxygen to form aluminum oxide. Balancing equations like this is an essential skill in chemistry. Here you...
Open this video on Wayne Breslyn (Dr. B.)How to Balance S + O2 → SO2 (Sulfur + Oxygen Yields Sulfur Dioxide)
How to balance S + O2 → SO2 (Sulfur + Oxygen Yields Sulfur Dioxide). Also shown with subscripts: S + O₂ → SO₂. Interactive Balancing Practice: http://www.Breslyn.org/balancing In this quick chemistry example, we check sulfur and oxygen atoms step by step to...
Open this video on Wayne Breslyn (Dr. B.)New Free Chem Practice App – Test Your Knowledge!
🌐 Start practicing now: https://www.breslyn.org/naming/ Struggling with chemical names & formulas? I made a free web app where you can practice all the compound types you need for general chemistry: Ions (monatomic + polyatomic) Ionic compounds (simple + w...
Open this video on Wayne Breslyn (Dr. B.)Molecular Geometry of Ozone (O₃)
In this video, we break down the molecular geometry of ozone (O₃) using VSEPR theory and AXE notation. Ozone has a bent shape due to lone pair repulsion on the central oxygen atom, and we’ll look at how electron domains determine this geometry. To help visu...
Open this video on Wayne Breslyn (Dr. B.)