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 ...
1 to work (dough, clay, etc.) into a uniform mixture by pressing, folding, and stretching. 2  to manipulate by similar movements, as the body in a massage. 3  to make by kneading:to knead bread.4  to make kneading movements with:She kneaded her fist into her palm.nead /niËd/ vb (transitive) to work and press (a soft substance, such as bread dough) into a uniform mixture with the hands to squeeze, massage, or press with the hands to make by kneading Etymology: Old English cnedan; related to Old Saxon knedan, Old Norse knotha.