Ensure that you understand the theory of the subject content and its different applications. Rehearse your skills – preparation and practise will help to perfect actions. Find out as much as you can about the setting for the exam, and plan responses or activities for possible questions or tasks set
How did you find it? I thought it was awful. Especially as they didn't give the equation. I know it's usually 1:1 but I panicked incase the magnesium or calcium affected things