GCSE Chemistry – Balancing Equations | Writing Word & Symbol Equations (2026/27 exams)

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*** WHAT’S COVERED ***
1. How to write chemical equations
* The difference between word equations and symbol equations.
* Identifying reactants and products in a reaction.
* How to represent diatomic molecules like oxygen (O2).
2. The principle of balancing chemical equations
* Understanding the law of conservation of mass.
* The need for the same number of each type of atom on both sides of an equation.
3. The rules for balancing equations
* Using coefficients (the big numbers) to balance.
* Why you cannot change the subscripts (the little numbers).
4. Worked examples of balancing chemical equations
* A step-by-step guide to balancing the combustion of methane.
* A step-by-step guide to balancing a neutralisation reaction.

*** CHAPTERS ***
0:00 Introduction
0:22 Chemical Equations (Word vs Symbol)
1:44 How to Balance Chemical Equations
2:35 The Rules of Balancing
3:28 Walkthrough: Balancing CH4 + O2
4:30 Walkthrough: Balancing H2SO4 + NaOH

*** PLAYLISTS ***

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