The slideshow shows how a covalent bond forms between a hydrogen atom and a chlorine atom, making hydrogen chloride. A simple molecule contains only a few atoms, so the sizes of atoms and simple ...

Further, a photo-chloralkali (PCA) process converts leftover brine into hydrogen, chlorine, and sodium hydroxide, with the help of photo-active material Cu₂O. In addition, the proton exchange ...

Another reason is that these long skinny molecules are loosely packed together. Polyvinyl chloride is made up of carbon, hydrogen, and chlorine atoms. If you compare polyvinyl chloride to polyethylene ...