Chemistry
General Chemistry I and II in plain language. Free to read, practice and play, with no sign-up.
21chapters
17animated modules
126interactives
1,050flashcards
700practice questions
See It: Chemistry
Start watchingWatch it happen
See chemistry happen: in the beaker, at the particle level and in the equation. 17 animated walkthroughs, each with a hands-on lab. Pause, slow down or have it read aloud.
- 1Measurement and units
- 2Atoms, isotopes and the periodic table
- 3Light, electrons and orbitals
- 4Periodic trends
- 5Ionic and covalent bonding
- 6Molecular shape and polarity
- 7Moles and stoichiometry
- 8Reactions in aqueous solution
- 9Gases
- 10Thermochemistry
- 11Intermolecular forces, liquids and solids
- 12Solutions and colligative properties
- 13Chemical kinetics
- 14Chemical equilibrium
- 15Acids, bases and buffers
- 16Entropy, free energy and electrochemistry
- 17Nuclear chemistry
Study tools
Interactive textbookRead online or save the whole book as a PDF.Labs and interactivesHands-on activities for every chapter.1,050 flashcardsSpaced review that brings back what you are about to forget.700 question practice examsExam style questions with explanations.Eight study guidesIllustrated study guides to print or save.
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Chapters
- 1Essential IdeasMatter, measurement and the language of chemistry.
- 2Atoms, Molecules and IonsWhat everything is built from, and how we name it.
- 3Composition of Substances and SolutionsCounting atoms by weighing them.
- 4Stoichiometry of Chemical ReactionsEquations that balance, and what they let you predict.
- 5ThermochemistryWhere the energy in a reaction goes.
- 6Electronic Structure and Periodic PropertiesWhere the electrons live, and why that sets the table.
- 7Chemical Bonding and Molecular GeometryHow atoms join, and the shapes that result.
- 8Advanced Theories of Covalent BondingOrbitals that overlap, mix and spread out.
Show all 21 chapters
- 9GasesThe state we can predict with one equation.
- 10Liquids and SolidsWhat holds condensed matter together.
- 11Solutions and ColloidsMixtures that behave like one substance.
- 12KineticsHow fast a reaction runs, and what controls it.
- 13Fundamental Equilibrium ConceptsReactions that run both ways at once.
- 14Acid-Base EquilibriaProtons on the move.
- 15Equilibria of Other Reaction ClassesSolubility, complex ions and coupled systems.
- 16ThermodynamicsWhich way a change goes on its own.
- 17ElectrochemistryChemistry that moves electrons through a wire.
- 18Representative Metals, Metalloids and NonmetalsThe main groups, group by group.
- 19Transition Metals and Coordination ChemistryThe d-block, its colors and its complexes.
- 20Organic ChemistryCarbon, and the families it builds.
- 21Nuclear ChemistryChanges inside the nucleus.