A homogeneous mixture of two or more substances is a:
solvent
solution
solute
compound
In a solution of sugar and water:
the sugar is the solute, and the water is the solvent
the water is the solute, and sugar is the solvent
both the sugar and the water are solvents
both the sugar and the water are solutes
In a solution of ammonia gas in water:
the ammonia is the solute and water is the solvent
the water is the solute and ammonia is the solvent
both the ammonia and the water are solvents
both the ammonia and the water are solutes
Naphthalene, a non-polar solid can be dissolved in benzene, a non-polar liquid. From this information, one can conclude that
benzene is the solute, and naphthalene is the solvent
naphthalene is the solute, and benzene is the solvent
naphthalene and benzene are both solvents
naphthalene and benzene are both solutes
Of the following, which will increase the solubility of a gas in water?
increasing the temperature and the increasing the pressure
decreasing the temperature and increasing the pressure
decreasing the temperature and decreasing the pressure
increasing the temperature and decreasing the pressure
Increasing the temperature of a solution:
increases the frequency of solute - solvent collisions, but decreases the energy of solute - solvent collisions
decreases the frequency of solute - solvent collisions, but increases the energy of solute - solvent collisions
increases both the frequency and the energy of solute - solvent collisions
decreases both the frequency and the energy of solute - solvent collisions
The speed of solvent molecules can be slowed by:
Increasing the surface area of the solute
Increasing the temperature
Increasing the pressure
Decreasing the temperature
Which of the following should most greatly increase the rate of dissolving of a salt in water?
Increasing the temperature and stirring
Increasing the pressure
Decreasing the temperature and stirring
Stirring and increasing the pressure
When a solid or gas dissolves easily in a liquid to form a solution, the solid or gas is said to be _________________ in the liquid.
compatible
soluble
heterogeneous
endothermic
A substance that dissolves in a water to form a solution that conducts an electric current is said to be an:
electrolyte
nonelectrolyte
heterogeneous solvent
catalyst
Which of the following is an example of a nonelectrolyte in water solution?
base
sugar
salt
acid
Which of the following will conduct an electric current?
sugar in water
alcohol in water
salt in water
pure water
Breaking a solid into smaller pieces increases the rate of dissolving because
it increases the temperature of the solution
it increases the energy of the solution
it increases the surface area of the solute
it increases the pressure above the solution
Which of the following is least likely to produce a solution?
An ionic solute in a polar solvent
A polar solute in a polar solvent
A nonpolar solute in a nonpolar solvent
A nonpolar solute in a polar solvent
When a solute dissolves in water, it is expected to
raise the freezing point and the boiling point of the water
lower the freezing point and the boiling point of the water
raise the freezing point and lower the boiling point of the water
lower the freezing point and raise the boiling point of the water
Assume that the image above represents the given quantity of each substance dissolved in one liter of water. Which of the following statements is true?
All of the solutions will boil at a temperature below 100°C
All of the solutions will boil at 100°C
Some solutions will boil at a temperature below 100°C, and some of the solutions will boil at a temperature above 100°C
All of the solutions will boil at a temperature above 100°C
Assume that the image above represents the given quantity of each substance dissolved in one liter of water. Which of the following statements is true?
All of the solutions will freeze at a temperature below 0°C
All of the solutions will freeze at 0°C
Some solutions will freeze at a temperature below 0°C, and some of the solutions will freeze at a temperature above 0°C
All of the solutions will freeze at a temperature above 0°C
When two liquids blend together to form a solution, the liquids are said to be