Unit 8 Chem test Flashcards
particles (20 cards)
Intramolecular forces
covalent, ionic, and metallic bonds (attraction forces WITHIN the molecule)
Intermolecular Forces
Dispersion, Diopole-Diopole, Hydrogen bonding- (Attraction forces BETWEEN molecules)
Dispersion Force
Seen in all molecules- caused by movement of electrons
Dipole-Dipole Force
Seen only in polar molecules- dipoles are stuck together like little magnents
Hydrogen bonding
Attraction between hydrogen of on molecule and a highly electronegative atom (N,O,F)
Dipolr
“two pole” a seperation of charge
Polar Molecule
uneven distribution of charge:often not symmetrical
Nonpolar
molecules with an even distribution of charge
Density
mass/volume
Viscosity
A measure of the resistance to flow
Boiling Point
Temp when liquid becomes gas
Melting Point
soild to liquid
Kinetic Energy
Energy in motion
Potential Energy
Energy that is stored
Soild to gas
Sublimation
Gas to soild
depostion
Net Dipole
permant seperation
Induced Dipole
present in all molecules: temporary seperation
A ionic(metal and a nonmetal) compound will be…
stronger than an intermoleculer force