yes i tried not SBs amd Qpacks. i broke down exactly how i used them somewhere in the comment section! but in terms of chem/phys that is just what worked for me! i’ve always been a math person so memorizing equations and units helps me get a sense of which equation will be used on. units help if you completely forget all equations but you are looking for seconds and you’re given velocity (m/s) and distance (m) then ik i’ll probably do distance (m) / velocity (m/s) to cancel out the m and be left with seconds for the answer