Химическая цепочка Na-NaOH-Na2CO3-NaCL
Na -> NaOH -> Na2CO3 -> NaCL 1) 2Na + 2H2O = 2NaOH + H2 2) 2NaOH + CO2 = Na2CO3 + H2O 3) Na2CO3 + 2HCl = 2NaCl + CO2 + H2O