Question

what distinguishes a weak acid from a strong acid?
strong acids have a higher concentration.
weak acids fully dissociate in water.
weak acids have a low rate of dissociation.
strong acids stay together more than they split.

Explanation:

Strong acids fully dissociate in water, while weak acids only partially dissociate. Concentration is not the distinguishing factor. The key is the degree of dissociation.

Answer:

Weak acids have a low rate of dissociation.