题目内容

写出下列盐溶液水解的离子方程.

(1)(NH4)2SO4________

(2)AlCl3_____________

(3)KF:_______________

(4)Na3PO4____________

答案:
解析:

  (1)NH4++H2ONH3·H2O+H+

  (2)Al3++3H2OAl(OH)3+3H+

  (3)F+H2OHF+OH

  (4)PO43-+H2OHPO42-+OH,HPO42-+H2OH2PO4+OH

  H2PO4+H2OH3PO4+OH


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