If you are beginning the general chemistry review (Part II):

Start with Khan Academy — Structure and Bonding, then move to Khan Academy — Acids and Bases. Use OpenStax Ch. 6, Ch. 7, Ch. 8, Ch. 13, and Ch. 14 for reading.

If you are building foundational organic chemistry knowledge (Part III):

Start with Khan Academy — Resonance and Acid-Base Chemistry. Then read LibreTexts Ch. 1 and Ch. 2. The Master Organic Chemistry — Intro to Resonance article is especially useful for building intuition about resonance.

If you are working through reaction mechanisms (Part IV):

The Master Organic Chemistry — SN1/SN2/E1/E2 Wrapup is one of the clearest summaries available. Pair it with LibreTexts Ch. 11 for reading and the Organic Chemistry Tutor for worked examples.

If you are preparing for spectroscopy (Part VII):

Professor Dave Explains covers NMR and IR particularly well for students encountering these techniques for the first time. Pair with LibreTexts Ch. 12 (IR and MS) and Ch. 13 (NMR) for reading.

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