(1)写出下列物质发生水解反应的离子方程式,并指出水溶液的酸碱性: ①NaHS_________________ ②NaHPO4_________________ ③CH3COONH4_________________ ④NaHSO3_________________ ⑤NaH2PO4_________________ ⑥CuSO4_________________ (2)写出下列各组盐溶液混合后发生反应的离子方程式: ①FeCl3和Na2CO3_________________ ②CuSO4和Na2S_________________ ③AlCO3和Na2S_________________ ④Na2SiO3和NH4Cl_________________ ⑤Al2(SO4)3和Na2CO3_________________ ⑥Al2(SO4)3和NaHCO3_________________ |