2KOH+H2CO3--->K2CO3+2H2O
2K+ +2OH- +2H+ +CO3 2- --->2K+ +CO3 2- +2H2O
2OH- +2H+ --->2H2O
Ca(OH)2+2HCl--->CaCl2+2H2O
Ca2+ +2OH- +2H+ +2Cl- --->Ca2+ +2Cl- +2H2O
2OH- +2H+ --->2H2O
HNO3+NaOH--->NaNO3+H2O
H+ +NO3- +Na+ +OH- --->Na+ +NO3- +H2O
H+ +OH- --->H2O
3Ba(OH)2+2H3PO4--->Ba3(PO4)2+6H2O
3Ba2+ +6OH- +6H+ +2PO4 3- --->Ba3(PO4)2 +6H2O
skrócony zapis taki sam