Why doesn't antifreeze freeze?

Answer 1

Actually, antifreeze will freeze. It just freezes at a much lower temperature than ordinary water. But it can freeze, and the chemical structure of antifreeze is such that the molecules will not change state (liquid to solid -- freeze) except at the very lowest temperatures. A lot of thermal energy must be removed from antifreeze to cause the molecules to "hook up" and the stuff to change state into a solid. It's based on the nature of the chemical structure of antifreeze.