When molecules have an even charge distribution and no dipole moment then they are nonpolar molecules. CO2 is a linear molecule, so our dipoles are symmetrical; the dipoles are equal in magnitude but point in opposite directions. Generally, when dipole distribution is symmetrical there is no dipole moment.
Degenerative joint disease (medical condition): Osteoarthritis is a form of arthritis typically caused by age-related wear-and-tear. In diagnosis, it ...
&COPY; Reed Group Osteoarthritis (OA), also known as degenerative arthritis, degenerative joint disease (DJD) or osteoarthrosis, is the most common disorder of joints. OA results from mechanical abnormalities of the joint which cause degradation of joint (articular) cartilage and subchondral bone.