You need to know how to present your data. Presentation scores marks more than your results do. by presentation I mean your table, calculations,etc.
Something you should do. Be smart
Learn to manipulate when you're confident of what's goin to happen. When you know a metal and and acid have been reacted, H2 is gonna be released. So to save time, just don't do these petty stuff. But you have to be careful.
Ohk....I don't understand what you mean by the practical to be performed. Like there could be radical tests, enthalpy calculations,titration,etc.
http://www.creative-chemistry.org.uk/alevel/practical.htmAll you need. Remember presentation is very important