СОСТАВИТЬ ИОННОЕ УРАВНЕНИЕ ДЛЯ ТРЕХ РЕАКЦИЙ!! 1. Na + O2 2. Na2O + H2O 3. H2So4 + 2NaOH
1)4Na+O2=2Na2O
2)Na2O+H2O=2NaOH
3)2NaOH+H2SO4=Na2SO4+2H2O
2Na+ + 2OH- + 2H+ + SO4 2- =2Na+ + SO4 2- + 2H2O
2H+ + 2OH- =2H2O
H+ + OH- =H2O
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Answers & Comments
1)4Na+O2=2Na2O
2)Na2O+H2O=2NaOH
3)2NaOH+H2SO4=Na2SO4+2H2O
2Na+ + 2OH- + 2H+ + SO4 2- =2Na+ + SO4 2- + 2H2O
2H+ + 2OH- =2H2O
H+ + OH- =H2O