Â© Ted French. Definition: A function is a preset formula in Excel and Google Spreadsheets. Like formulas, functions begin with the equal sign (=) followed by the function's name and its arguments. The function name tells Excel what calculation to perform. The arguments are contained inside round brackets.
Best Answer: Look for molecular symmetries. Symmetrical molecules such as methane, carbon dioxide, carbon disulfide, and borane (BH3) are nonpolar. Asymmetric molecules such as water, ammonia, and acetone are polar.
By Anne Marie Helmenstine, Ph.D. Polar Molecule Definition: A polar molecule is a molecule containing polar bonds where the sum of all the bond's dipole moments is not zero.Examples: Water is a polar molecule.Carbon dioxide is made up of polar bonds, but the dipole moments cancel each other out and therefore is not a polar molecule.xamples: Water is a polar molecule. Carbon dioxide is made up of polar bonds, but the dipole moments cancel each other out and therefore is not a polar molecule.