Chemistry Band 6? (1 Viewer)

[Nooblet94]

I go to a top 20 school that usually gets 1-2 state ranks in Chemistry each year. My overall internal mark was just shy of 80% and I'm not sure what my rank is, but I'd estimate it'd be between 20 and 30 (I did really, shit in the first half of the course, because I put 0 effort in, but then ended up coming 13th for the final prac, weighted at 23%, and 21 for the trial, weighted at 35%).

I'm fairly certain I'll get a band 5, but what are my chances of a band 6? Thanks in advance.