1)Ca+ 2HCl = CaCl2 + H2
2)NaOH + HCl = H2O + NaCl
3)ZnO + 2HCl = ZnCl2 + H2O
4)K2CO3 + 2HCl = H2O + CO2 + 2KCl
возможны 4 реакции
1)Ca+ 2HCl = CaCl2 + H2
2)NaOH + HCl = H2O + NaCl
3)ZnO + 2HCl = ZnCl2 + H2O
4)K2CO3 + 2HCl = H2O + CO2 + 2KCl
возможны 4 реакции