Odpowiedź :
NaOH+HNO3--->NaNO3+H2O
Na+ +OH- +H+ +NO3- --->Na+ +NO3- +H2O
OH- +H+ --->H2O
2Na+2HNO3--->2NaNO3+H2
2Na +2H+ +2NO3- --->2Na+ +2NO3- +H2
2Na +2H+ --->2Na+ +H2
Na2O+2HNO3--->2NaNO3+H2O
Na2O +2H+ +2NO3- --->2Na+ +2NO3- +H2O
Na2O +2H+ --->2Na+ +H2O