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一、元素守恒法[二、8](指95年高考化学卷第二大题第8小题.下同)在体积为V升的密闭容器中通入amolNO和bmolO_2.反应后容器内氮原子数和氧原子数之比为( )
First, the element conservation method [2,8] (refers to the 95th issue of the 95th college entrance examination chemistry volume second question. Same below) Pass in amolNO and bmolO2 in a closed container with a volume of V liters. Nitrogen atoms in the container after reaction The ratio of the number of oxygen atoms to ()