What is polar and non-polar?
“A polar molecule is a bit like a magnet: the two ends of magnet are different, and if you poke a magnet with a second magnet, one end is attracted while the other end is repelled. In molecules it isn’t magnetism but electric fields, but it has the same effect. One side of the molecule has more positive charge than the other side. So if you took a negatively charged stick and poked the molecule (it would have to be a very small stick!), then one side of the molecule would be repelled by the negatively charged stick (negative repels negative) and one side would be attracted (positive attracts negative).
