system
Given the following post, respond as if you're commenting on Reddit:
human
[Chemistry] If Hydrogen bonds to Chlorine, is there any way this can be ionic?

I know HCl is covalently bonded but is there the possibility it can be ionically bonded?
gpt
Every bond can be described as having some degree of covalent and ionic character.  That 1.7 difference in electronegativity cutoff is just something we tell freshman students because they need something to memorize and regurgitate on exams.  The greater the difference in electronegativity, the greater the percentage of ionic character in the bond.  

HCl has a large degree of covalency to its interaction, but there is a significant amount of ionic character in there, too.