Answer:
H₂CO₃ (aq) + 2NaOH(aq) → Na₂CO₃ (aq) + 2H₂O(l)
Explanation:
In a reaction of neutralization you produce water and the salt derived from the acid and the base that has reacted.
Carbonic acid dissociates as this:
H₂CO₃ (aq) + H₂O (l) ⇄ H₃o⁺ (aq) + HCO₃⁻ (aq) Ka₁
HCO₃⁻ (aq) + H₂O (l) ⇄ H₃O⁺ (aq) + CO₂²⁻ (aq) Ka₂
Sodium hydroxide dissociates as this:
NaOH (aq) ← Na⁺ (aq) + OH⁻(aq)
So OH⁻ bonds to the H₃O⁺ to make water.
H₃O⁺ + OH⁻ ⇄ 2H₂O Kw
The reaction for neutratlization is:
H₂CO₃ (aq) + 2NaOH(aq) → Na₂CO₃ (aq) + 2H₂O(l)
