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磷酸与NaOH反应方程式如下:NaOH+H_3PO_4=NaH_2PO_4+H_2O ①2NaOH+H_3PO_4=Na_2HPO_4+2H_2O ②3NaOH+H_3PO_4=Na_3PO_4+3H_2O ③ H_3PO_4与NaOH的反应,究竟按哪一类进行?
The equation for the reaction of phosphoric acid with NaOH is as follows: What kind of reaction is NaOH+H_3PO_4=NaH_2PO_4+H_2O 12NaOH+H_3PO_4=Na_2HPO_4+2H_2O 23NaOH+H_3PO_4=Na_3PO_4+3H_2O 3 H_3PO_4 and NaOH?