chapter 12 study guide Flashcards
molecules whose water solutions can carry electric current
ionize in water
what increases the rate at which a solid dissolves in water
raising the temperature of the water
stirring the solution
crushing the solid
when the energy released by the formation of solvent-solute attractions is greater than the energy absorbed by overcoming solute-solute and solvent-solvent attractions, the dissolving process
has a negative enthalpy of solution
henry’s law relates
pressure to gas-liquid solubility
raising the temperature of a solvent causes solvent-solvent collisions to become
more frequent and more energetic
the rate at which a solid dissolves is
directly related to solubility
effervescence is the
escape of a gas from a gas-liquid solution
a solution that contains a large concentration of solute but can hold even more solute is
unsaturated and concentrated
what type of solute-solvent combination is carbon dioxide in water
gas-liquid
which type of mixture contains the smallest particles
solutions
in a solution at equilibrium,
the rate of dissolution and the rate of crystallization are equal
a dissolved solute that does not form ions is
a nonelectrolyte
as temperature increases, the solubility of gases in liquids generally
decreases
the substance dissolved in a homogeneous mixture is the
solute
a mixture that can be identified because it scatters light is a
colloid
when a solute dissolves and recrystallizes at the same rate, the solution is at
equillibrium
a substance that does not dissolve in a polar solvent is probably
nonpolar
to carry a electric current, a solution must contain
ions
a solution that contains more dissolved solute than a saturated solution contains under the same conditions is called a
supersaturated solution
mixtures are classified according to their
particles size in diameter
a homogeneous mixture that contains particles in a dispersed phase that do not settle out is a
colloid
the dissolved substance in a solution is called the
solute
an _______ is a solution whose solute and solvent are both solid metals
alloy
___________ is an example of an electrolyte and _________ is an example of an nonelectrolyte
sodium chloride
sugar
_____ is an example of a colloid
fog
brass is an alloy made up of _____ and ______
zinc and copper
