Question

A 0.12m solution of an acid that ionizes only slightly in solution would be termed _____.

Answer 1

A 0.12 M solution of an acid that only slightly ionizes in solution would be termed a weak acid. Weak acids are acids which do not completely dissociate in water. Thus lowering the presence of hydronium ions which measures the pH of an acid.  

Answer 2

Explanation:

An acid is a specie that donates hydrogen ions, that is, $H^{+}$ ions.

When an acid gives or dissociates to produce more number of hydrogen ions then it is known as strong acid.

Whereas when an acid gives or dissociates to produce few or very less number of hydrogen ions then it is known as weak acid.

Therefore, when a 0.12m solution of an acid that ionizes only slightly in solution would be termed as weak acid because it is giving less number of hydrogen ions.