order your functions top-down, so burner function on top. Makes it more intuitive for the reader

This one is also extensible which may help in future chem questions. Might as well write a whole class.

This reminds me of a story about an old software company where a manager rates your code based on the number of lines in it, 9 lines of code goes to 50 pretty quick... At least this woks,and is very easy to follow, if a little long. Bravo