Is AP Human, Pre-AP Biology, Pre-AP Chemistry, Pre-AP English 9, and Pre-Calc doable as a freshman?

Yes, if you are highly motivated. I would not recommend taking both AP Bio and AP Chem as a sophomore though. Maybe try taking a foreign language or an elective instead of chem and then go pre-AP Bio → AP Bio + pre-ap chem → AP Chem. Judging by this schedule, you seem to be taking AP Calc BC, AP Chem, AP Bio, and AP Lang in sophomore year which is just asking for burnout but you could technically do it if you have epic time management. Try to have a social life and Netflix/chill time or you’re gonna be miserable. I will say, it would look pretty good on your app to have AP Bio, AP Chem, and AP Physics (preferably C) especially for a STEM major.