edge rules of ammonium persulfate

ammonium persulfate | edge rules

{1->3, 1->5, 1->7, 1->8, 2->4, 2->6, 2->9, 2->10, 3->4, 11->13, 11->14, 11->15, 11->16, 12->17, 12->18, 12->19, 12->20}