Phases 
Qualitative approach to chemical equilibrium
Quantitative approach to chemical equilibrium
Law of mass action (Guldberg and Waage)
Law of pressures
Equilibrium calculations (tutorial)
Homogeneous equilibria in liquid phase (exercises)
Homogeneous equilibria in gas phase (exercises)
One substance dissolved in two phases
One substance dissolved in two phases (animation)
Solubility product
Solubility product (animation)
Solubility product (tutorial)
Solubility product (exercises)
Saturation vapour pressure
Saturation vapour pressure (animation)
Theory of heterogeneous equilibrium
Example of heterogeneous equilibrium: Humidity of air
Heterogeneous equilibria (exercises)
Displacement of equilibrium (comparaison)
Displacement of equilibrium: an example
Displacement of equilibrium: Le Châtelier and Van't Hoff's general law
Displacement of equilibrium: (chromate/dichromate)
Displacement of equilibrium: (complexes of cobalt)
Displacement of equilibrium: (ironIII and thiocyanate)
Displacement of equilibrium (exercices)