The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, s...
And development of replacements for other bromine con- taining flame retardants and poly vinyl chloride, as well as PoHS(Norwegian hazardous substances regulation) containing materials will be completed in 2008. In addition, W3 which is currently in commercial production, had its PDP glass thicknes...