bond - attraction within a molecule bonding forces - attractive forces outside and between molecules
Post on 21-Dec-2015
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Bond - Attraction within a molecule
Bonding forces - attractive forces outside and between
molecules
Solid - Strong attractive forces
Liquid - varied attractive forces depending on
compound
Gas - No real attractive forces
Hydrogen Bond
Attraction between molecules that have a Hydrogen connected to a F, O or N
Very strong attractive force – breaks pipes in the winter
Responsible for Surface Tension
HO
H
H O
H
HO
HH O
H
HO
H
-++
++
--
+ +H
OH
Surface Tension
Dipole Force
Attraction due to different electronegativities
H Cl+ - +-
+-+-+ - +-+-
+ -+ -
Dispersion Force
Produced from temporary dipoles
Si O Si O+ -
N HHH
..-
++
+
Solute
substance that is dissolved
usually less amount
Solvent
substance doing the dissolving
Concerning Solutions
Like things dissolve like things
Polar dissolves polar compounds
nonpolar dissolves nonpolar
Boiling Point
The temperature at which a
liquids vapor pressure is equal to the atmospheric
pressure
Vapor Pressure
The partial pressure a gas exerts when in equilibrium with a liquid
Heat and Matter
• Heat is used by matter to either increase its temperature change state
• While changing state, the temperature of a substance remains constant
Heating Curve for Water
Phase Diagram for Water