Do we need to know for the current AQA spec how sigma/pi bonds work? And in more complicated questions if both compounds have a spare pair of electrons how do we know which compound donates their pair and which one receives it?
+Ashleigh Knowles Not particularly, just have to remember the general reactions really. They all follow some kind of pattern e.g. acid + carbonate will produce salt, carbon dioxide and water. Keep practicing. Exam papers and you will see that many of them you will become familiar with the general products.
trying to understand Schrodingers equation (I don't think I even spelt his name right). I just don't understand the way he notates his orbitals need help
