（1）甲烷电子式是
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A\u3001\u70ef\u70c3\u7684\u7ed3\u6784\u7b80\u5f0fC=C\u53cc\u952e\u4e0d\u80fd\u7701\u7565\uff0c\u4e59\u70ef\u7684\u7ed3\u6784\u7b80\u5f0f\u4e3aCH2=CH2\uff0c\u6545A\u9519\u8bef\uff1bB\u3001C2H6\u662f\u4e59\u70f7\u7684\u5206\u5b50\u5f0f\uff0c\u4e59\u70f7\u7ed3\u6784\u5f0f\u4e3a\uff0c\u6545B\u9519\u8bef\uff1bC\u3001\u7532\u70f7\u5c5e\u4e8e\u5171\u4ef7\u5316\u5408\u7269\uff0c\u5206\u5b50\u5f0f\u4e3aCH4\uff0c\u5206\u5b50\u4e2dC\u539f\u5b50\u4e0eH\u539f\u5b50\u4e4b\u95f4\u5f62\u62101\u5bf9\u5171\u7528\u7535\u5b50\u5bf9\uff0c\u7535\u5b50\u5f0f\u4e3a\uff0c\u6545C\u6b63\u786e\uff1bD\u3001\u82ef\u7684\u5206\u5b50\u5f0f\u4e3aC6H6\uff0c\u82ef\u7684\u7ed3\u6784\u7b80\u5f0f\u4e3a\uff0c\u6545D\u9519\u8bef\uff1b\u6545\u9009C\uff0e
（1）甲烷的分子式为CH4，为正四面体结构，电子式为，故答案为：；（2）苯的分子式为C6H6，结构简式为，分子中的碳碳键是一种介于单键和双键之间的一种独特的键，分子内各原子处于同一平面上，在化学性质上易取代、能加成、难氧化，
故答案为：C6H6；；单键；双键；平面；取代；
（3）乙醇中含有CH3CH2-和-OH，结构式为，故答案为：；羟．
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