下列变化中所涉及到的物质都是初中化学常见的物质。①A在一定条

下列变化中所涉及到的物质都是初中化学常见的物质。①A在一定条件下反应生成BC;②DE反应生成FB;③CG在不同条件下反应生成HI;④JK分别与D反应都生成BFIJ中的组成元素比K多一种。已知AB常温下为液体,且组成元素相同;CG为单质;医疗上用F来配制生理盐水。试回答下列问题:

1)写出E的化学式                

2D所属物质类别               (填“酸、碱、盐或氧化物”);

3)写出A在一定条件下反应生成BC的化学方程式                            

4)④中的变化涉及到的基本反应类型是                                    

答案

1NaOH      2)酸       32H2O22H2O+O2      

4)复分解反应、分解反应

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