Chemistry A level isn't as bad as everyone is making it out to be. At the start it is obviously hard, as youve just done gcse's which lets face it, is baby work compared to a level. But once you settle into and adapt to a level life, you start to understand the concepts that come a long with the alevel. The course itself, is not as content filled as biology. Once you start looking deeper into it, in your own time outside of lesson, all becomes clearer and easier..
I myself, kind of neglected the subject and focused on my others, bio and maths mainly. But i still managed to obtain a B in my january exam. Point being, chemistry is a well respected a level, which means it is going to be a hard a level, but that applies to all a levels. Its down to yourself to achieve.