Compléter AlkenVersion en ligne Alken in Italian is Alcheni par ATTILIO RAPACCIOLI 1 bonds covalent Alkenes atoms carbon molecules charges are made of carbon and hydrogen , so they are called hydrocarbons . Their general formula is : CnH2n and the Alkene have at least one - carbon double bond ( C = C ) which is nucleophilic that is it's attracted to places that don't have enough electrons . That means the double is attracted to positive .
Créer jeu