could you explain those stick figure things that you use to draw out chemicals? Sorry if it's a stupid question, I don't get them :(
Yes of course! Not at all a stupid question, chemistry is hard.
The ‘stick figures’ are called skeletal formula, and it is essentially a short hand way of drawing organic (carbon-containing) compounds.
I drew out an example using a chemical called propane:
As you can see, in skeletal formula all the hydrogens are stripped off, leaving you with the just the carbons. Every point on the skeletal formula represents a carbon; propane has 3 carbons so it’s skeletal formula has three points to represent them.
But the carbon chain isn’t always that simple, and in most of my infographics, the molecules can get quite complex. Other groups/elements may be added in various places, represented by their chemical symbol- I’ve used an example from this infographic of the neurotransmitter GABA:
You can still see the basic carbon chain in the skeletal formula with the 4 carbons, just with the extra add-ons. I hope this explained it enough! If you still need clarification this video goes into more depth.