CaCO3 + 2HCl = CaCl2 + H2O +CO2
Ca(OH)2 + 2HCl = CaCl2 + 2H2O
CaO + 2HCl = CaCl2 + H2O
Ca + 2HCl = CaCl2 + H2
2Na + 2H2O = 2NaOH + H2
Na2O + H2O = 2NaOH
CaCO3 + 2HCl = CaCl2 + H2O +CO2
Ca(OH)2 + 2HCl = CaCl2 + 2H2O
CaO + 2HCl = CaCl2 + H2O
Ca + 2HCl = CaCl2 + H2
2Na + 2H2O = 2NaOH + H2
Na2O + H2O = 2NaOH