Here you will find all the theory pages you need for the Substitution vs. elimination simulation.
Good luck and have fun!
SN1 Reaction
SN2 Reaction
E1 Reaction
E2 Reaction
Reaction Terminology
Hydrocarbon nomenclature
Chemical nomenclature: Trivial names
Carbocations
Alkyl halides
Factors that contribute to nucleophilicity
Leaving groups
Solvent types