Whereas ethanedioic acid is weak as when it was mixed with a base it

formed a salt and water, showing a typical reaction of an acid. However, it did not fully ionize in water, which is a characteristic of a weak acid.

Step 1: Ethanedioic acid (also known as oxalic acid) is mixed with a base.

Step 2: The acid reacts with the base to form a salt and water. This is a typical reaction of an acid.

Step 3: However, the ethanedioic acid does not fully ionize in water. This means that not all of the acid molecules break apart into ions.

Step 4: The fact that the ethanedioic acid does not fully ionize in water is a characteristic of a weak acid. Therefore, ethanedioic acid is considered a weak acid.