need help

[jazzoff]

Hi, I am a student in some crazy place on earth, and life is really hectic here. The teachers are just crazy! We have two tests (Maths and English) this week and another two (Chemistry Practical and Theory tests) next week! We never have the time to revise properly, and now I think I really suck in Chemistry and I have to resort to COPYING answers. (What a relief this only happens when I am doing Chemistry worksheets. If I am doing this for every subject, then I am really disappointed with myself. PHEW! ) i just cannot remember how to identify substances during chemistry practicals like what happens to sodium hydroxide if it detects a cation such as Ca+ because there is juz too much to memorise! Pls...someone help me! Is there a good way to remember those results?