Hydrocarbons rhymes with:
fluorocarbons, fluorocarbons, carbons, fluorocarbons, carbons, fluorocarbons, carbons, fluorocarbons, bourbons, cabins, carbons, cubans, fitzgibbons, fluorocarbons, gibbens, grabens, hertzenleben's, mccubbins, ribbons, robin's, robins, robins', rubens, suburbans, toobin's, turbans, urban's