IT'S ORIGINAL FORM: High density polyethylene is from petroleum it is sometimes called "alkathene" or "polythene".
CHEMICAL CHANGE: The chemical change required to make the product is the monomer ethylene.
IT'S FINAL FORM: (HDPE) has little branching giving it stronger intermolecular forces and tensile strength the difference in density, giving HDPE a higher specific strength and HDPE can with stand somewhat higher tempertures (120 degrees C/248 degrees F for short periods.)
ENVIRONMENT ISSUES: Plastic is a major environmental problem when it is not recycled, in 2050 there will be more plastic than fish in the oceans.
WHAT'S IT USED FOR: Backpacking, frames, banners, bottle caps, fuel tanks for cares, folding chairs and tables, plastic bags, plastic bottles, snowbordes, storage sheds, water pipes.
HOW HAS IT IMPACT SOCIETY: It is good for humans but it is bad for humans.