Best Answer: Polar bond = simply a type of covalent bond in which the electrons are shared but not equally. This happens when two different atoms come together, such a C and O. Each atom has a different ability to draw electrons to itself when it shares electrons (that drawing ability is called Electronegativity).onpolar bond = two of the same atoms come together, such as the diatomic molecule N2, or triatomics such as O3, etc. A nonpolar covalent bond could be viewed as having pure covalent character. There is perfectly equal sharing. Source(s): http://iweb.tntech.edu/snorthrup/chem111...
Some people who have chronic obstructive pulmonary disease â such as emphysema â develop a slight barrel chest in the later stages of the disease. It occurs because the lungs are chronically overinflated with air, so the rib cage stays partially expanded all the time.
When people talk about a barrel being âshot outâ they typically are referring to the wear that occurs just forward of the chamber in the first 4 inches of the rifling known as the throat. This is a natural phenomenon that occurs in all barrels given enough time, and is due to many factors that will be outlined below.