【10乌鲁木齐市15】.如图中两圆相交部分(A、B、C、D)可表示铁、

【10乌鲁木齐市15】.如图中两圆相交部分(A、B、C、D)可表示铁、稀硫酸、烧碱溶液、硫酸铜溶液间的反应关系,请按下列要求填空:

 

 

A处发生反应的化学方程式是 ①  ,其反应类型是  ② 

B处发生反应的类型是  ③ 

D处产生的现象是  ④ 

 

答案

①Fe+CuSO4=FeSO4+Cu  ②转换反应  ③复分解反应(或中和反应)

④产生蓝色沉淀

解析:略

 

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