<p>i'm practicing with a sparknotes book, and i came across this question
the following hydrogen halides (HF, HCl, HBr, and HI) are all polar. The strength of the acid each forms in water is based on which of the following?</p>
<ol>
<li>the polarity of the molecule
II. the size of the molecule
III. the strength of the bond</li>
</ol>
<p>I answered I and III, but the book says its II and III...could someone please help me? thank youu:)</p>