Chapter 5 - Hess’s Law pt.2: Problem solving // Science Scribbles A-Level / IB HL Chemistry collection
(Hess’s Law part 1 | other syllabus topics)
And here is part 2. Hope I managed to explain it somewhat ^^ The reason I drew all these symbols is to explain the method, but once you get it there is no need to draw them every time!
Headaches are still largely a medical mystery. We have no pain receptors on our brain, yet we so often experience pain which seems to come from it. This infographic outlines the 3 main types of headaches, and their probable causes.