Ch 10 Word Scramble
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AP Chem term (Ch. 10) | Definition |
condensed states | liquids and solids. |
intermolecular forces | relatively weak interactions that occur between molecules. |
dipole-dipole attraction | the attractive force resulting when polar molecules line up so that the positive and negative ends are close to each other. |
hydrogen bonding | unusually strong dipole-dipole attractions that occur among molecules in which hydrogen is bonded to a highly electronegative atom (N, O, F). |
London dispersion forces | the forces, existing among noble gas atoms and nonpolar molecules, that involve an accidental dipole that induces a momentary dipole in the neighbor. |
surface tension | the resistance of a liquid to increase in its surface area. |
capillary action | the spontaneous rising of a liquid in a narrow tube. |
viscosity | the resistance of a liquid to flow. |
crystalline solid | a solid with a regular arrangement of its components. |
amorphous solid | a solid with considerable disorder in its structure. |
lattice | a three-dimensional system of points designating the positions of the centers of the components of a solid (atoms, ions, or molecules). |
unit cell | the smallest repeating unit of a lattice. |
X-ray diffraction | a technique for establishing the structure of crystalline solids by directing X rays of a single wavelength at a crystal and obtaining a diffraction pattern from which inter-atomic spaces can be determined. |
ionic solid (salt) | a solid containing cations and anions that dissolves in water to give a solution containing the separated ions which are mobile and thus free to conduct electrical current. |
molecular solid | a solid composed of neutral molecules at the lattice points. |
atomic solid | a solid that contains atoms at the lattice points. |
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