WorksheetsHolt Chem Ch 13 Solutions
Total questions: 10
Worksheet time: 5mins
All of the following are heterogeneous mixtures except
whole wheat bread
granite
tap water
oil-water mixture
Carbon dioxide in water is an example of which solute-solvent combination?
gas-liquid
liquid-gas
liquid-liquid
cannot be determined
Which of the following expresses concentration?
molality
molarity
parts per million
all of these
Pressure has the greatest effect on the solubility of
solids in liquids
liquids in liquids
lases in gases
gases in liquids
In a solution in equilibrium,
no dissociation occurs
the rate of dissolution is less than the rate of crystalization
the rate of dissolution is greater than the rate of crystallization
the rates of dissolution and crystallization are equal
Which of these is an electrolyte?
sodium chloride
sugar
water
glass
A dissolved solute that does not form ions is
a nonelectrolyte
a weak electrolyte
a strong electrolyte
insoluable
Adding the emulsifier lecithin to an oil-water mixture
causes the oil and water to seperate
changes the oil to a soap
prevents the water from evaporating
keeps the oil and water mixed
The statement "any physical effect of a solute on a solvent" refers to
colligative properies
chemical properties
liquid-solid properties
electrolyte properties
___ is the general term that describes substances that concentrate at the boundary between two immiscible substances and makes them miscible.
surfactant
nonelectrolyte
emulsion
electrolyte
