[Timson28]

Hi everyone.

I'm stuck with an exercise. Draw the lewisstructure of HIO3. I tried it but i've no idea if it's correct.

I think one normal covalent bond between Oxygen and iodine and the two dative covalent bonds.

Sorry for the bad grammar but i'm not an American or English guy.

[chenbeier]

Check here

https://slideplayer.com/slide/7795317/25/images/11/Resonance+of+IO3-+One+Lewis+structure+cannot+accurately+depict+an+anion+such+as+iodate..jpg

[AWK]

As often happens in this Forum, questions that are not exactly precise can be interpreted differently.
The question is about HIO₃, but this acid in aqueous solution is largely ionized. In solutions with a concentration > ~ 0.3 M, the non-ionized form prevails, so Timson28 drew a rather correct structure satisfying the octet rule. If a specific concentration much less than 0.3 M were given then Chenbeier would be right.
A compromise solution would be to draw both answers.