first, is pretty much asking u to write the whole solvay process...from start to finish, include all relevant equations
second, uses will be fine....might as well chuck in advantages, and safety problems...
I)write ur own syllabus dot point summaries :) - the process is more important than the notes itself.
II)after writing an answer in exam, ask urself "would you give this full marks if u wer the teacher?" "am i missing anything?" "should i include a diagram?" (its the hsc, dont say yolo after u...
you can always secretly do the forensics section in ur actual hsc exam, your teachers will NEVER know anyway. however this means u have to study forensics for the actual exam, and industrial for school assessments
i think u has a chance at 99+...... try get chem to at least 2/13, and of course, stay consistent in external
dw bout SOR too much..the sciences will outscale that..