Callahan County, TX Real Estate & Homes for Sale Homes for Sale in Callahan County, TX have a median listing price of $128,995 and a price per square foot of $75. There are 103 active homes for sale in Callahan County, Texas, which spend an average of 73 days on the market. Some of the hottest neighborhoods near Callahan County, TX are Tanglewood East, Chimney Rock Area, Far Southside, River Oaks-Brookhollow. You may also be interested in homes for sale in popular zip codes like 79602, 79601, or in neighboring cities, such as Abilene, Clyde, Baird, Cisco, Coleman.
hydrogen bond. A chemical bond in which a hydrogen atom that is already bonded to an atom in a molecule forms a second bond with another atom, either in the same molecule or in a different one. The second atom is usually of a type that strongly attracts electrons, such as nitrogen or oxygen.
Hydrogen bond definition, a type of chemical bond in which a hydrogen atom that has a covalent link with one of the electronegative atoms (F, N, O) forms an electrostatic link with another electronegative atom in the same or another molecule. See more.