Which acid-base chemical reaction is irreversible?

Question

A. weak acid added to water
B. weak base added to water
C. water on its own
D. strong acid added to water

Answer 1

The irreversible acid-base chemical reaction among the options given is:

D. strong acid added to water

When a strong acid is added to water, it completely dissociates into its ions, resulting in a significant change in pH. This dissociation is essentially irreversible under normal conditions, meaning the acid will not recombine with the water molecules to form the original acid.