Atomic Concepts
Subatomic particles, atomic number and mass, isotopes, the evolution from Dalton to the wave-mechanical model, electron configurations, ground vs. excited state, and bright-line spectra.
The ten topics
Each card opens the outline plus every resource tied to that core idea. The Regents draws questions from all ten, weighted toward Atomic Concepts, Bonding, and Reactions.
Periodic Table
Mendeleev to Moseley, families and properties, metals/nonmetals/metalloids, and the four trends that drive almost every Periodic Table question: atomic radius, ionization energy, electronegativity, metallic character.
Moles & Stoichiometry
Avogadro's number, molar mass, percent composition, empirical vs. molecular formulas, balancing equations, the five reaction types, and the three mole conversions every Regents student must do in their sleep.
Chemical Bonding
Why atoms bond, ionic vs. covalent vs. metallic, Lewis structures, molecular shapes, polar vs. nonpolar molecules, intermolecular forces, and the rules for naming compounds the Regents loves to ask about.
Physical Behavior of Matter
KMT, phase changes, heating and cooling curves, gas laws, solutions and solubility curves (Table G), molarity calculations, and how solute affects a solvent's boiling and freezing points.
Kinetics & Equilibrium
Reaction rates, collision theory, activation energy, potential energy diagrams (read them cold), endothermic vs. exothermic, dynamic equilibrium, and Le Chatelier's Principle on every type of stress.
Organic Chemistry
Carbon's bonding rules, alkanes/alkenes/alkynes, IUPAC naming, the nine functional groups (Table R), isomers, and the eight organic reactions: combustion, substitution, addition, esterification, saponification, fermentation, polymerization.
Oxidation–Reduction
Oxidation numbers, LEO the lion says GER, half-reactions, balancing redox, voltaic vs. electrolytic cells, and how to use Activity Series (Table J) to predict every single replacement reaction.
Acids, Bases & Salts
Arrhenius vs. Brønsted-Lowry, common acids and bases (Tables K and L), pH scale and indicators (Table M), neutralization, electrolytes, and the MaVa = MbVb titration calculation.
Nuclear Chemistry
Alpha, beta, gamma, and positron emission; natural vs. artificial transmutation; half-life calculations using Table N; fission vs. fusion; medical and industrial applications; risks and benefits.
The Reference Tables
Every formula, constant, and lookup table you're handed at the start of the exam, indexed and cross-referenced so you know which question type each one solves. Open the table index →
Real Regents practice
Released NYSED multiple choice, paired-stimulus Part B-2 items, and Part C constructed response prompts, organized by topic. No watered-down review-book questions.
The calculation drills
Mole-mass-particle conversions, molarity, percent composition, half-life, gas laws, and titration: the seven calculation types that show up on every June exam.
Note on the 2026 transition
This site is built for the traditional Physical Setting / Chemistry exam administered June 9, 2026 at 9:15 AM. If Stuyvesant is administering the new NYSSLS-aligned Physical Science: Chemistry exam on June 9, the underlying chemistry is ~90% the same but the question style emphasizes data analysis and cross-cutting concepts — let me know and I'll re-skin the practice sections.