Chemistry
Chemistry is where quantum mechanics, thermodynamics, and statistical mechanics produce the periodic table, bond energies, reaction rates, and phase behavior. The discipline is a rich applied corollary of physics — and the cross-references make that explicit.
Units
14.01.01— Atomic structure and electron configurations shipped14.02.01— Lewis structures and VSEPR shipped14.02.02— Hybridization and valence bond theory draft14.03.01— Stoichiometry and gas laws shipped14.04.01— Hydrogen atom quantum chemistry draft14.05.02— Molecular orbital theory for homonuclear diatomics draft14.06.01— Chemical thermodynamics: free energies and equilibrium shipped14.08.01— Chemical kinetics: rate laws and the Arrhenius equation shipped14.10.01— Acid-base chemistry: Bronsted-Lowry, Lewis, and pKa shipped14.11.01— Electrochemistry: the Nernst equation and electrochemical cells shipped14.12.01— UV-Vis, IR, and NMR — fundamentals of molecular spectroscopy shipped15.01.01— Structure of organic molecules — stereochemistry shipped15.02.01— Functional groups and nomenclature shipped15.03.01— Acids and bases in organic chemistry shipped15.04.02— SN1 vs SN2 substitution mechanisms draft15.05.01— Electrophilic addition to alkenes shipped15.06.01— Aromatic chemistry — EAS, Huckel draft15.07.01— Carbonyl chemistry — nucleophilic addition shipped15.10.01— Retrosynthetic analysis shipped15.11.01— NMR spectroscopy of organic molecules shipped15.12.01— Amino acids and protein chemistry draft15.13.01— Nucleic acid chemistry draft15.14.01— Enzyme mechanism draft16.01.01— Periodic trends quantified draft16.02.01— Symmetry and group theory in chemistry shipped16.03.01— Crystal field theory fundamentals shipped16.03.02— Crystal field splitting in octahedral complexes draft16.04.01— Coordination chemistry shipped16.04.02— Crystal field stabilization energy and the spectrochemical series shipped16.05.01— Organometallic chemistry shipped16.06.01— Bioinorganic chemistry shipped16.07.01— Solid-state chemistry shipped
Synthesis essays
Cross-cutting questions that don't fit one chapter — the bond as ontology, what reactivity is, why the periodic table works. Lighter than tiered units; not graded for mastery.
- Essay 1. The Chemical Bond — Many-Body Phenomenon vs Effective Two-Center Object — Why the Lewis bond and the molecular orbital aren't the same thing — and what either one is, ontologically.
Coverage roadmap
Three top-level sections: §14 general & physical chemistry (structure, bonding, thermo, kinetics, spectroscopy); §15 organic chemistry (mechanism, synthesis, biomolecule chemistry); §16 inorganic chemistry (coordination, organometallic, descriptive, solid-state foundations). See the chemistry plan for the full roadmap and unit-vs-essay decision criteria.