Ионные уравнения. решить hcl + ca (oh)= h2 so4 + koh= mg cl2 + naon=

H2SO4+2KOH= K2SO4+2H2O
HCL+CA(OH)2=Ca(Cl)2+2H2O
MgCl2 + 2NaOH=Mg(OH)2 +2NaCl

2HCl + Ca(OH)2 = 2H2O + CaCl2
2H + 2Cl + Ca + 2OH = 2H2O + Ca + 2Cl
2H + 2OH = 2H2O

H2SO4 + 2KOH = 2H2O + K2SO4
2H + SO4 + 2K + 2OH = 2H2O + 2K + SO4
2H + 2OH = 2H2O

MgCl2 + 2NaOH = Mg(OH)2 + 2NaCl
Mg + 2Cl + 2Na + 2OH = Mg(OH)2 + 2Na + 2Cl
Mg + 2OH = Mg(OH)2