How is neutralization of a carbonate with an acid different from the neutralisation of an oxide or a hydroxide?

Neutralization of carbonate with an acid and neutralisation of oxides with an acid is different.

Metal carbonate + acid → salt + carbon dioxide + water Example

Na2CO3(s) + 2HCl (aq) → 2NaCl(aq) + CO2 (g) + H2O(l)

Metal oxide + acid → Salt + water Example

Na2O + 2HCl → 2NaCl + H2O

Metal hydroxide + acid → Salt + water Example

NaOH + HCl → NaCl + H2O