vocab
existing or taking place withing a molecule.
water has a slightly _____ side and a slightly _____ side.
positve, negative
definition of boiling point
the temperature at which a liquid boils.
what did the baloon do to hair when rub against the head and why?
the hair stood on end because they both had opposite charges.
existing or taking place between molecules
intermolecular forces.
surface tension
the force between the molecules of water.
cohesion is responsible for?
capillary action
what tempurature does water boil at? farenheit or celcius
212: farenheit
100: celcius
what did the water do with the balloon? why?
the stream curved towards the balloon. because the opposite charges attract.
intermolecular forces as a whole
van der Waals forces.
cohesion
the action or fact of forming a united whole
surface tension is strongest with?
hydrogen bonds.
what can cause the boiling point to change?
the strength of the hydrogen bond.
the light released in the chemiluminescent lab was a form of what?
energy
the strongest intermolecular forces. must involve at least one hydrogen atom.
hydrogen bonding.
dipole
a pair of equal and oppositely charged or magnetized poles separated by a distance.
what is the increasing order of bond strength
1.) dispersion forces
2.) dipole forces
3.) hydrogen bonding
what is the difference between melting point and boiling point?
melting point is the temperature at which a frozen liquid will melt. boiling point is the temperature at which the liquid will boil.
what type of reaction involves the release of energy in the form of heat and/or light?
exothermic.
the action or process of distributing things or people over a wide area.
dispersion force.
vaporization
conversion of a substance from the liquid or solid into a gas.
_____ are the forces holding non metals together in covelant bonding
attractive forces
how does salt affect the boiling point of water when mixed in?
it increases the boiling point making it take longer to boil.
inter and intra-molecular forces interact how when dissolving solutes in water?
Polar solutes dissolve in polar solvents(water), because of the favorable intermolecular interactions ( hydrogen bonding, and dipole-dipole forces).
the internal energy of a system including the kinetic energy of its particles.
thermal energy.