they're solid, although chemistry is the most important A-level for medicine. As far as I know it is compulsory to have chemistry A level for medicine whereas you don't HAVE to have biology, or physics or chemistry (although most places want biology and chemistry and one of maths/physics). Therefore it might hurt your chances a bit that you got an A in chemistry and and not an A* like your other sciences. Plus you might want to consider medicine in the light of chemistry, as its a very tough A level (toughest science) and it looks like your weakest science-whereas engineering you might be able to get away with just maths and physics as your sciences