For 10 points, name this simplest aromatic hydrocarbon with formula C6H6.
Naphthalene is created when two of these molecules fuse together. A hydrogen halide is produced when this compound reacts with a haloalkane and a Lewis acid catalyst in the Friedel-Crafts alkylation. Replacing one of its hydrogen atoms with a functional group can produce phenol and toluene, and one of its properties arises from its 4n + 2 pi electrons where n equals 1 according to Hückel's rule. Kekule proposed this molecule's alternating double bonds and ringlike structure. For 10 points, name this simplest aromatic hydrocarbon with formula C6H6.
Naphthalene is created when two of these molecules fuse together.
Benzene [accept C6H6 before end]