OH- + H+  H2O OH- + FE3+  FE(OH)3 OH- + AL3+  AL(OH)3 OH- + AL(OH)...

Câu 3:

OH- + H+  H2O

OH- + Fe3+  Fe(OH)3

OH- + Al3+  Al(OH)3

OH- + Al(OH)3  Al(OH)

4

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