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3NaOH + H₃PO₄ = Na₃PO₄ + 3H₂O
3NaOH + H3PO4 ---> Na3PO4 + 3H2O
(teraz te indeksy takie jak 2+ beda musialy byc na gorze )
Mg 2+ + 2OH- + 2H+ + SO4- ----> Mg2+ + SO4 2- + 2H2O
2OH- + 2H+ -----> 2H2O |:2
OH- + H+ -----> H2O
b)3NaOH + H3PO4 -----> Na3PO4 + 3H2O
3Na+ + 3OH- + 3H+ + PO4 3- -----> 3Na+ + PO4 3- + 3H2O
3OH- + 3H+ ----------> 3H2O |:3
OH- + H+ -------------> H2O