<p>Is the following for OH- okay? (sorry, just read straight across)</p>
<p>O with three valence e- pairs, dash, H</p>
<p>That's how I always draw it, but does the dash have to be replaced with a pair of e-?</p>
<p>Come on, it’s just a notation question afterall</p>
<p>No, that’s fine. The scoring guidelines say to accept either notation, and I’ve always used the way that you described.</p>