chemisry hsc

hey guys!! so basically, im in year 11 right now and currently i am doing a total of 15 units. 13 in school, and an external language outside of school. Here are my subjects: English Adv English Ext Math Adv Biology Chemistry Visual Arts SOR2 Accelerated Itallian Continuers (meaning i will be...

Does anyone know any chem trials that are hard (ie what school or bought paper) - or have good solutions to learn how to structure responses?

Does anyone know where to get any past papers for any science (phys, bio, chem) for internal assessments during the year (not trials). I've searched everywhere like thsc, acehsc, studocu and can barely find anything.