hydrocarbon molecules (set

chemical structure molecule molecular atoms model computer 2d two dimensional compound formula structural methane ethane propane nbutane isobutane npentane isopentane neopentane nhexane nheptane noctane ethylene propylene acetylene methylacetylene styrene 2butene benzene toluene xylene naphthalene biphenyl mesitylene cyclopropane cyclobutane cyclopentane cyclopentadiene cyclohexane alkane carbon paraffin alkyl methyl gas oil diesel petrol