So the density will not be equal, whereas here it will be equal, or pretty much equal. Therefore, this section of the bond will be weak. And so when a base comes around, it will be able to pull away this H atom with greater ease. Therefore, the more polar our bond, the more likely that it will break and release that H plus ion. Finally, let's look at the stability of conjugate bases. Now, if you forgot what a conjugate acid in base is, check out the link below.