General Chemistry Resources
Into Chemistry helps students build confidence in General Chemistry through organized study guides, practice problems, exam review, and step-by-step explanations.
Study Support for General Chemistry
Strengthen your chemistry skills with guided problem solving, practice quizzes, worksheets, topic reviews, and ACS-style exam preparation.
General Chemistry Topic Library
Choose a topic below to review concepts, practice calculations, and prepare for quizzes, labs, and exams.
Math for Chemistry
Review algebra, exponents, scientific notation, graphing, units, calculator skills, and setting up chemistry problems.
Scientific Notation
Practice writing very large and very small numbers, using powers of ten, and entering values correctly into a calculator.
Significant Figures
Learn measurement rules, rounding, addition, subtraction, multiplication, division, and reporting final answers correctly.
Unit Conversions
Practice metric prefixes, dimensional analysis, density conversions, and multi-step unit conversion problems.
Dimensional Analysis
Learn how to organize conversion factors, cancel units, and solve chemistry calculations step by step.
Matter and Measurement
Review physical properties, chemical properties, states of matter, classification of matter, accuracy, precision, and density.
Atoms and Elements
Study protons, neutrons, electrons, atomic number, mass number, isotopes, ions, and element symbols.
The Periodic Table
Review groups, periods, metals, nonmetals, metalloids, main-group elements, transition metals, and periodic organization.
Periodic Trends
Learn atomic radius, ionization energy, electron affinity, electronegativity, metallic character, and trend explanations.
Moles and Avogadro’s Number
Convert between particles, atoms, molecules, formula units, moles, and grams using Avogadro’s number.
Molar Mass
Calculate formula mass, molar mass, gram-to-mole conversions, mole-to-gram conversions, and compound masses.
Percent Composition
Practice calculating mass percent from a formula and using percent composition to analyze compounds.
Molecules and Compounds
Study ionic compounds, molecular compounds, hydrates, acids, formulas, molar mass, and composition.
Empirical and Molecular Formulas
Learn how to determine empirical formulas from percent composition and molecular formulas from molar mass.
Nomenclature
Practice naming ionic compounds, covalent compounds, acids, bases, hydrates, and compounds with polyatomic ions.
Polyatomic Ions
Review common polyatomic ions, charges, formulas, naming patterns, and how they appear in compounds.
Chemical Reactions
Identify synthesis, decomposition, combustion, single replacement, double replacement, precipitation, and acid-base reactions.
Balancing Equations
Practice balancing equations and checking that atoms are conserved on both sides of a chemical reaction.
Stoichiometry
Master mole ratios, mole-to-mole, gram-to-gram, limiting reactants, theoretical yield, and percent yield.
Chemical Reactions and Quantities
Practice reaction calculations, balanced equations, limiting reagents, percent yield, and mole relationships.
Limiting Reactants
Learn how to identify the limiting reactant, excess reactant, theoretical yield, actual yield, and percent yield.
Aqueous Reactions
Study electrolytes, precipitation reactions, molecular equations, complete ionic equations, and net ionic equations.
Solutions
Review molarity, dilution, solution stoichiometry, solubility, concentration, and solution preparation.
Molarity and Dilution
Practice molarity calculations, dilution equations, solution preparation, and concentration changes.
Thermochemistry
Learn heat, energy, enthalpy, calorimetry, specific heat, phase changes, and Hess’s law.
Calorimetry
Practice heat transfer calculations, specific heat, q = mcΔT, coffee-cup calorimetry, and reaction heat.
Electronic Structure
Study light, photons, energy levels, quantum numbers, orbitals, and electron configurations.
Electron Configurations
Practice orbital filling, noble gas notation, valence electrons, orbital diagrams, and exceptions.
Chemical Bonding
Learn ionic bonding, covalent bonding, bond polarity, electronegativity, lattice energy, and bond types.
Lewis Structures
Practice drawing Lewis structures for molecules and ions, including octets, formal charge, and resonance.
VSEPR and Molecular Geometry
Study molecular shapes, electron domains, lone pairs, bond angles, polarity, and three-dimensional structure.
Intermolecular Forces
Review London dispersion forces, dipole-dipole forces, hydrogen bonding, boiling point, and vapor pressure.
Gases
Practice Boyle’s law, Charles’s law, combined gas law, ideal gas law, Dalton’s law, and gas stoichiometry.
Liquids and Solids
Study phase changes, vapor pressure, boiling point, melting point, phase diagrams, crystal solids, and intermolecular forces.
Kinetics
Learn reaction rates, rate laws, reaction order, activation energy, catalysts, and reaction mechanisms.
Equilibrium
Practice equilibrium constants, ICE tables, reaction quotient, Le Châtelier’s principle, and equilibrium calculations.
Acids and Bases
Study pH, pOH, strong acids, weak acids, neutralization, titrations, buffers, Ka, Kb, and acid-base equilibrium.
pH and pOH
Practice pH, pOH, hydrogen ion concentration, hydroxide concentration, and acid-base calculations.
Titrations
Learn titration setup, equivalence point, indicators, neutralization reactions, and molarity calculations.
Buffers
Review weak acid/base systems, buffer capacity, Henderson-Hasselbalch calculations, and pH changes.
Solubility Equilibrium
Learn Ksp, molar solubility, precipitation, common ion effect, and selective precipitation.
Thermodynamics
Review entropy, enthalpy, Gibbs free energy, spontaneity, temperature dependence, and equilibrium connections.
Redox Reactions
Practice oxidation numbers, oxidation, reduction, oxidizing agents, reducing agents, and balancing redox equations.
Electrochemistry
Study galvanic cells, electrolytic cells, cell potential, standard reduction potentials, and electrochemical calculations.
Nuclear Chemistry
Learn nuclear symbols, radioactive decay, half-life, alpha decay, beta decay, gamma emission, and nuclear equations.
Intro to Organic Chemistry
Review hydrocarbons, functional groups, isomers, naming basics, and simple organic reactions.
Laboratory Skills
Review lab safety, measurements, glassware, uncertainty, graphing data, percent error, and lab calculations.
General Chemistry Exam Prep
Prepare for quizzes, cumulative exams, ACS-style questions, study planning, and final exam review.
Not Sure Where to Start?
If you are new to chemistry, start with unit conversions, significant figures, atoms and elements, moles, molar mass, and stoichiometry. These topics support almost everything else in General Chemistry.