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 ...
Tay-Sachs disease is a fatal genetic disorder in which harmful quantities of a fatty substance called Ganglioside GM2 accumulate in the nerve cells in the brain. This is caused by a decrease in the functioning of the Hexosaminidase A enzyme.