Chemistry Cheat Sheets
Free, printable one-page cheat sheets: the complete rules, formulas, and reference data for each general-chemistry topic. Download, print, or practice each one free.
Significant Figures & Measurement
Counting sig figs, rounding, scientific notation, SI units and prefixes, and dimensional analysis.
View & download →2Classification of Matter
Pure substances, mixtures, states of matter, and physical vs chemical properties.
View & download →3Atomic Structure & Isotopes
Subatomic particles, atomic and mass number, isotopes, average atomic mass, shells, and Lewis dots.
View & download →4Chemical Nomenclature
Naming ionic and molecular compounds, acids, and hydrates, plus the common polyatomic ions.
View & download →5Predicting & Balancing Reactions
Balancing, the five reaction families, product prediction, the activity series, and when there is no reaction.
View & download →6Chemical Reactions in Solution
Solubility rules, electrolytes, dissociation, ionic equations, and the aqueous reaction types.
View & download →7Redox Reactions & Balancing
Oxidation numbers, identifying redox and agents, disproportionation, and the half-reaction and oxidation-number methods.
View & download →8The Mole & Chemical Formulas
Moles, molar mass, Avogadro's number, percent composition, and empirical/molecular formulas.
View & download →9Solutions & Concentration
Percent, molarity, molality, dilution, mixing, and the concepts behind dissolving.
View & download →10Stoichiometry
Mole ratios, mass-to-mass, limiting reactant, excess, and percent yield.
View & download →11Solution Stoichiometry & Titrations
n = MV stoichiometry, acid-base and redox titrations, standards, purity, and gravimetric analysis.
View & download →12Electron Structure & Light
Quantum numbers, orbital filling, electron configurations, and the light/energy relationships.
View & download →13Periodic Properties & Trends
Effective nuclear charge and the radius, ionization energy, electron affinity, electronegativity, and ionic-size trends.
View & download →14Chemical Bonding & Lewis Structures
Valence counting, the octet rule, drawing structures, formal charge, exceptions, and resonance.
View & download →15Molecular Geometry & Bonding Theories
VSEPR shapes, bond angles, polarity, hybridization, sigma/pi bonds, and molecular-orbital basics.
View & download →16Thermochemistry
Enthalpy, formation reactions, Hess's law, calorimetry, and bond energies.
View & download →17Gases & Gas Laws
Pressure units, the gas laws, PV=nRT, partial pressures, molecular speeds, and gas stoichiometry.
View & download →18Intermolecular Forces & Phase Changes
Identifying IMFs, their trends, phase transitions and diagrams, heating curves, and crystalline solids.
View & download →19Colligative Properties
Van 't Hoff factor, freezing/boiling shifts, Raoult's law, osmotic pressure, and molar-mass back-calculation.
View & download →20Chemical Kinetics
Rate laws, integrated rate laws, half-lives, Arrhenius, mechanisms, and energy diagrams.
View & download →21Chemical Equilibrium
K expressions, Kp/Kc, the reaction quotient, ICE tables, and Le Chatelier's principle.
View & download →22Acids, Bases & pH
Acid-base models, pH/pOH, conjugate pairs, strong vs weak, Ka/Kb, salt hydrolysis, and polyprotic acids.
View & download →23Buffers & Titration Curves
Buffer action, Henderson-Hasselbalch, effective range, the four titration regions, and indicators.
View & download →24Solubility & Complex-Ion Equilibria
Ksp, molar solubility, the common-ion effect, Q vs Ksp, selective precipitation, and coupled equilibria.
View & download →25Entropy & Free Energy
Entropy trends, ΔS°, ΔG°, spontaneity, the free-energy/K link, and crossover temperature.
View & download →26Electrochemistry
Galvanic cells, E°cell, the Nernst equation, electrolysis, and the E-ΔG-K triangle.
View & download →27Coordination Chemistry
Complex-ion charge, naming, coordination number, crystal-field theory, magnetism, and Beer's law.
View & download →28Nuclear Chemistry
Balancing nuclear equations, decay modes, decay kinetics, binding energy, and fission/fusion.
View & download →29Main-Group Chemistry
Periodic trends, group reactivity, allotropes, hydrogen, and the key industrial processes.
View & download →30Final Exam Review
A roadmap to the general-chemistry final: the problem families to recognize, method cues, a readiness checklist, cross-topic traps, and a few topics beyond the assessed strands. Pointers are to the numbered ChemWhiz topic sheets.
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