Here we're going to say that weak electrolytes represent solutes that partially dissolve into ions when placed into solve it. So here we have AB solid. To show that it's a weak electrolyte, we use double sided arrows to show that not all of AB dissolves into ions. So he would get Aq+B-q.
Very little of these ions would actually be forming because again it's a weak electrolyte. We're going to say here that weak electrolytes are either weak acids or weak bases. Now for weak acids, if an acid is not strong, then it is automatically going to be weak.
So the strong acids that we examined earlier are the strong acids. You need to remember if you see an acid and it's not one of those that we discussed, by default it is a weak acid and therefore it is a weak electrolyte.