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【简答题】
（1）有一种叫做钾长石（K 2 Al 2 Si 6 O 16 ），其化学式为写成氧化物的形式为______________ （2）反应3Cu+8HNO 3 == 3Cu(NO 3 ) 2 +2NO↑+4H 2 O的离子方程式为：__________________________ 每生成11．2L标准状况下的气体，被还原的_________（填名称）的质量为___________g。得电子与失电子个数比是___________，被氧化与被还原的原子的个数比为______________，试用“单线桥”标出该反应电子转移数目：_____________________________ （3）已知A、B、C、D、E、F是含有同一种元素的化合物，其中F是能使红色湿润石蕊试纸变蓝的气体，它们之间能发生如下反应 ① A + H 2 O → B + C ② C + F → D ③ D + NaOH F + E + H 2 O 写出A 、B、 C的化学式A__________ B _________ C_________写出反应③的离子方程式_____________________________
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