Uploaded September 2025 | Updated September 2026, 2 weeks ago
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’ll learn an easy method for handling odd numbers of atoms and making sure each side of the chemical equation has the same number of atoms.
Essential Tips for Balancing Chemical Equations:
✅ Only change coefficients (the numbers in front), never subscripts.
✅ Start by balancing the metal (Al) first.
✅ Then balance oxygen (O2 vs O3 requires a common multiple).
✅ Double-check that the total number of atoms matches on both sides.
✅ Final Balanced Equation: 4Al + 3O2 → 2Al2O3
📌 More Chemistry Tutorials You’ll Find Helpful:
Balancing Equations in 5 Easy Steps: youtu.be/zmdxMlb88Fs
More Practice Balancing: youtu.be/Qci7hiBy7EQ
Molar Mass in Three Easy Steps: youtu.be/o3MMBO8WxjY
Understanding the Mole: youtu.be/DyLktMPTuHY
Moles to Grams Conversions: youtu.be/aIv5nr8ZNyw
Mole Ratio Explained: youtu.be/i71BMVlrMiw
Reaction Stoichiometry: youtu.be/rrTqOsZPpaU
This tutorial is perfect for students learning balancing chemical equations, synthesis reactions, or exam preparation in general chemistry.
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’ll learn an easy method for handling odd numbers of atoms and making sure each side of the chemical equation has the same number of atoms.
Essential Tips for Balancing Chemical Equations:
✅ Only change coefficients (the numbers in front), never subscripts.
✅ Start by balancing the metal (Al) first.
✅ Then balance oxygen (O2 vs O3 requires a common multiple).
✅ Double-check that the total number of atoms matches on both sides.
✅ Final Balanced Equation: 4Al + 3O2 → 2Al2O3
📌 More Chemistry Tutorials You’ll Find Helpful:
Balancing Equations in 5 Easy Steps: youtu.be/zmdxMlb88Fs
More Practice Balancing: youtu.be/Qci7hiBy7EQ
Molar Mass in Three Easy Steps: youtu.be/o3MMBO8WxjY
Understanding the Mole: youtu.be/DyLktMPTuHY
Moles to Grams Conversions: youtu.be/aIv5nr8ZNyw
Mole Ratio Explained: youtu.be/i71BMVlrMiw
Reaction Stoichiometry: youtu.be/rrTqOsZPpaU
This tutorial is perfect for students learning balancing chemical equations, synthesis reactions, or exam preparation in general chemistry.
