Zinc turns copper sulfate pale, iron rusts, and in 1910 I made radium a metal. All three are electrons passing from one atom to another.
Learn oxidation and reduction, oxidation-number rules, oxidising and reducing agents, half-reactions, balancing redox in acid, the activity series and rust.
Marie Curie
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November 8, 2026
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27 min
Vinegar, lemon, washing soda and lime water: I show you what makes an acid, how a proton changes hands, and how to measure an acid drop by drop.
Learn Arrhenius and Brønsted-Lowry acids and bases, conjugate pairs, strong and weak acids, salts, indicators, the pH scale and titration calculations.
Marie Curie
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November 8, 2026
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31 min
How much should you obtain, and how much did you really obtain? I teach you to answer both, from a bicycle workshop to my radium chloride.
Learn mole ratios, grams-to-grams calculations, limiting and excess reagents, and theoretical, actual, percent and multi-step yield, worked step by step.
Marie Curie
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November 8, 2026
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26 min
An equation is a ledger of atoms, and every column must agree. I show you how to keep it honest, one coefficient at a time.
Learn to read and balance chemical equations by inspection, step by step, name five reaction types, and read an equation in moles and grams.
Marie Curie
·
November 8, 2026
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31 min
