4) Identify which types of acid-base reactions are reversible and which ones are irreversible.

Question

Reversible Irreversible
HA + H2O ←→ A- + H3O+
MOH → M+ + OH-
HA + H2O → A- + H3O+
HA + H2O ←→ A- + H3O+
MOH → M+ + OH-
HA + H2O → A- + H3O+

Answer 1

Reversible: HA + H2O ←→ A- + H3O+ (equilibrium reaction)
Irreversible: MOH → M+ + OH- (complete reaction)