World · Chem/Phys
General Chemistry
Bonding, equilibrium, acids and bases, and electrochemistry without a calculator.
0 of 35 skills started0% mastered
Unit 1 · 4 skills
Atoms and Periodic Trends
Electrons, orbitals and the patterns of the table.
Start
Atomic structure
Electron configuration
Periodic trends
Quantum numbers
Unit boss
Unit 2 · 4 skills
Bonding and Molecular Shape
How atoms connect, and the shapes they make.
Locked
Ionic and covalent bonds
Lewis structures and formal charge
VSEPR geometry
Hybridization
Unit boss
Unit 3 · 3 skills
Intermolecular Forces
Why some things boil at room temperature.
Locked
Types of intermolecular forces
Boiling points and physical properties
Phase changes and phase diagrams
Unit boss
Unit 4 · 4 skills
Stoichiometry
Counting atoms without counting atoms.
Locked
Moles and molar mass
Balancing equations
Limiting reagent and yield
Percent composition and formulas
Unit boss
Unit 5 · 3 skills
Gases
PV = nRT and everything it explains.
Locked
The ideal gas law
Dalton's law and gas mixtures
Kinetic molecular theory
Unit boss
Unit 6 · 3 skills
Thermodynamics
Heat, disorder and whether a reaction wants to go.
Locked
Enthalpy and Hess's law
Entropy and Gibbs free energy
Calorimetry
Unit boss
Unit 7 · 4 skills
Kinetics and Equilibrium
How fast reactions go, and where they settle.
Locked
Rate laws
Activation energy and catalysts
The equilibrium constant
Le Chatelier's principle
Unit boss
Unit 8 · 4 skills
Acids and Bases
pH, buffers and titrations, the MCAT's favorite trio.
Locked
Acid and base definitions
pH and pKa
Buffers
Titrations
Unit boss
Unit 9 · 3 skills
Solutions
Dissolving, concentration and colligative properties.
Locked
Solubility and Ksp
Concentration units
Colligative properties
Unit boss
Unit 10 · 3 skills
Electrochemistry
Electrons on the move: redox and cells.
Locked
Oxidation and reduction
Galvanic and electrolytic cells
Cell potential and free energy
Unit boss
Final boss · Timed
General Chemistry final boss
Beat every unit boss in this world to unlock a timed mini-section.