Na+O2=NaO
NaO+HCl=NaCl +H2O
NaCl+H2O=Na(OH)+HCl
Na(OH)+H2SO4=Na2SO4+H2O
Na2SO4+HNO3=NaNO3+H2SO4
Na-Na2O-NaCl-NaOH-Na2SO4-NaNO3:
1)4Na+02=2Na2O;
2) Na2O+2HCl=2NaCl+H2O;
3) 2NaCl+2H2O=2NaOH+Cl2+H2;
4) 2NaOH+Н2SO4=Na2SO4+2H20;
5) Na2SO4+2AgNO3=2NaNO3+AgSO4.
Вроде так
Na+O2=NaO
NaO+HCl=NaCl +H2O
NaCl+H2O=Na(OH)+HCl
Na(OH)+H2SO4=Na2SO4+H2O
Na2SO4+HNO3=NaNO3+H2SO4
Na-Na2O-NaCl-NaOH-Na2SO4-NaNO3:
1)4Na+02=2Na2O;
2) Na2O+2HCl=2NaCl+H2O;
3) 2NaCl+2H2O=2NaOH+Cl2+H2;
4) 2NaOH+Н2SO4=Na2SO4+2H20;
5) Na2SO4+2AgNO3=2NaNO3+AgSO4.
Вроде так