alkenes
plural of alkene
Any member of the Ceriantharia.
(architecture) A dome-shaped ornamental structure located on top of a larger roof or dome. / (military, railroad) A small turret, usually on a hatch of an armoured fighting vehicle.
(archaic) Third-person singular simple present indicative form of feast
炭素-炭素二重結合を持つ不飽和炭化水素（アルケン類）は、適切な条件下で水素、ハロゲン、そして水と容易に付加反応を起こします。
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DiQt
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