Допишите уравнения химических реакций : CO2+H2O->.... Zn+HC1->...... +H2 ....+H2O->KOH .... + NaOH->Na2SO4+....
CO2+H2O=H2CO3
K2O+H2O->2KOH
Zn+2HCI=ZnCI2+H2
H2SO4+2NaOH->Na2SO4+2H2O
Zn+ 2HCl=ZnCl2+Н2
K2O+H2O=2KOH
H2SO4+2NaOH=Na2SO4+2H2O