Technology and Operations Management. The scope of Technology and operation management has evolved over a period of time and has moved from development of products into design, management and improvement of operating system and processes.
Hydrogen bonding forms in liquid water as the hydrogen atoms of one water molecule are attracted towards the oxygen atom of a neighboring water molecule; generally, a proton shared by two lone electron pairs.
1 When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. 2  Solid water, or ice, is less dense than liquid water.  Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.