Question 1

Which of the following is a solution?
A) blood plasma
B) cigarette smoke
C) milk
D) none of these

Accepted Answer

D

Question 2

Rainwater is naturally slightly acidic. Which gas causes this? A) N₂ B) O₂ C) CO₂ D) NH₃

Accepted Answer

Carbon dioxide (CO2) dissolves in rainwater to form carbonic acid, making it slightly acidic.

Question 3

Which term is used to refer to the liquid component of a solid-in-liquid solution?
A) concentrate
B) dissolver
C) solute
D) solvent

Accepted Answer

The term used to refer to the liquid component of a solid-in-liquid solution is solvent. The other options are not applicable in this context - concentrate refers to a mixture with a high amount of solute, dissolver is not a commonly used term in chemistry, and solute refers to the substance that is being dissolved in the solvent.

Question 4

A student is preparing a sugar-water solution to make rock candy. When the student continues to add sugar to the solution, no additional sugar dissolves. Which kind of solution is the student preparing?
A) The student is preparing a saturated solution.
B) The student is preparing a supersaturated solution.
C) The student is preparing an unsaturated solution.
D) We cannot tell if the student is preparing a saturated, a supersaturated, or an unsaturated solution.

Accepted Answer

A saturated solution is one in which no more solute can dissolve at a given temperature and pressure. Therefore, if the student continues to add sugar and it does not dissolve, then the solution must be saturated.

Question 5

Which of the following terms is used to refer to a gas dissolved in a liquid?
A) concentrate
B) precipitate
C) solute
D) solvent

Accepted Answer

The term used to refer to a gas dissolved in a liquid is "solute". Concentrate refers to the amount of solute present in a solution. Precipitate refers to the solid that forms when two solutions are mixed. Solvent is the liquid in which the solute is dissolved.

Question 6

Which of the following combinations will always result in a solution?
A) gas + gas
B) liquid + liquid
C) solid + solid
D) none of these

Accepted Answer

When a gas is mixed with another gas, the molecules of the gases will disperse and mix evenly throughout the available space, forming a homogeneous mixture. This process is known as diffusion and it will always result in a solution.

Question 7

Which of the following cannot serve as a solvent in a solution?
A) a gas
B) a liquid
C) a solid
D) none of these

Accepted Answer

All states of matter (gas, liquid, and solid) can serve as solvents in solutions. For example, air is a solution with gases as solvents, water is a common liquid solvent, and metal alloys are examples where solids act as solvents.

Question 8

Which of the following cannot serve as a solute in a solution?
A) a gas
B) a liquid
C) a solid
D) none of these

Accepted Answer

All states of matter (gas, liquid, solid) can serve as solutes in solutions, depending on the solvent and the conditions.

Question 9

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?
A) chromatography
B) distillation
C) either chromatography or distillation
D) neither chromatography or distillation

Accepted Answer

Both chromatography and distillation are commonly used separation techniques for solutions. Chromatography involves separating the different components based on their different degrees of attraction to a stationary phase and a mobile phase, while distillation involves separating components based on their differing boiling points. Therefore, either chromatography or distillation can be used to separate the components of a solution.

Question 10

What is the solute when alcohol is dissolved in water?
A) the alcohol
B) the water
C) the compound present in a larger amount
D) the compound present in a smaller amount

Accepted Answer

The answer of What is the solute when alcohol is...

Question 11

When a certain clear red-brown liquid is distilled, we recover a clear liquid and a red-brown solid. What can be said about the red-brown liquid?
A) It is an element.
B) It is a compound.
C) It is a solution.
D) We cannot determine if it is an element, a compound, or a solution.

Accepted Answer

The red-brown liquid is a solution because distillation separates it into a clear liquid and a red-brown solid, indicating it was a mixture of at least two different substances.

Question 12

Which of the following is a synonym of the term "solution"?
A) compound
B) element
C) heterogeneous mixture
D) homogeneous mixture

Accepted Answer

A solution is a homogeneous mixture of two or more substances that combine to form a single phase. Thus, the best choice for a synonym of the term "solution" is a homogeneous mixture.

Question 13

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?
A) chromatography
B) filtration
C) either chromatography or filtration
D) neither chromatography or filtration

Accepted Answer

Chromatography is a method used to separate the components of a solution based on their different interactions with a stationary phase and a mobile phase, making it suitable for separating solution components. Filtration, on the other hand, is typically used to separate solids from liquids and is not effective for separating the components of a solution.

Question 14

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?
A) distillation
B) filtration
C) distillation and filtration
D) neither distillation or filtration

Accepted Answer

Distillation is a process that can separate the components of a solution based on their different boiling points.

Question 15

A beaker of salt water contains some solid salt at the bottom. What type of solution is in the beaker?
A) It is a saturated solution.
B) It is a supersaturated solution.
C) It is an unsaturated solution.
D) We cannot tell if it is a saturated, a supersaturated, or an unsaturated solution.

Accepted Answer

When a solution has solid salt at the bottom, it means no more solute (salt) can dissolve at that temperature, indicating it is a saturated solution.

Question 16

Which of the following is true of a solution?
A) The components of a solution can be separated by filtration.
B) The components of a solution separate on standing.
C) The separation of a solution into its components is a chemical change.
D) The separation of a solution into its components is a physical change.

Accepted Answer

A solution is a homogeneous mixture of two or more substances. The components of a solution cannot be separated by filtration as they are evenly distributed at a molecular level. The components of a solution do not separate on standing as they are in a state of equilibrium. The separation of a solution into its components is a physical change as it does not alter the chemical composition of the substances involved.

Question 17

Which of the following are intermediates between homogenous and heterogeneous mixtures?
A) alloys
B) suspensions
C) plastics
D) solutions

Accepted Answer

The answer of Which of the following are intermediates between...

Question 18

To which of the following solvent-solute combinations does the term "alloy" apply?
A) liquid-solid
B) liquid-liquid
C) solid-solid
D) none of these

Accepted Answer

The term "alloy" only applies to solid-solid solvent-solute combinations, where two or more metals or a metal and a non-metal are mixed together to form a new material with improved properties. Therefore, option C is the correct choice.

Question 19

Which term is used to refer to the solid component of a solid-in-liquid solution?
A) concentrate
B) precipitate
C) solute
D) solvent

Accepted Answer

The solid component in a solid-in-liquid solution is referred to as the solute. The solute is the substance that is dissolved in the solvent to form a solution.

Question 20

A student is preparing a sugar-water solution to make rock candy. When the student continues to add sugar to the solution, the sugar dissolves. Which kind of solution is the student preparing?
A) The student is preparing a saturated solution.
B) The student is preparing a supersaturated solution.
C) The student is preparing an unsaturated solution.
D) We cannot tell if the student is preparing a saturated, a supersaturated, or an unsaturated solution.

Accepted Answer

The fact that the sugar continues to dissolve indicates that the solution is not yet saturated, ruling out options A and B. Therefore, the student is preparing an unsaturated solution (option C).

Quiz 6: Solutions and Colloids

Which of the following is a solution?

Rainwater is naturally slightly acidic. Which gas causes this?

Which term is used to refer to the liquid component of a solid-in-liquid solution?

A student is preparing a sugar-water solution to make rock candy. When the student continues to add sugar to the solution, no additional sugar dissolves. Which kind of solution is the student preparing?

Which of the following terms is used to refer to a gas dissolved in a liquid?

Which of the following combinations will always result in a solution?

Which of the following cannot serve as a solvent in a solution?

Which of the following cannot serve as a solute in a solution?

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?

What is the solute when alcohol is dissolved in water?

When a certain clear red-brown liquid is distilled, we recover a clear liquid and a red-brown solid. What can be said about the red-brown liquid?

Which of the following is a synonym of the term "solution"?

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?

A chemist has a sample that is known to be a solution. Which of the following processes can be used to separate the components of the solution?

A beaker of salt water contains some solid salt at the bottom. What type of solution is in the beaker?

Which of the following is true of a solution?

Which of the following are intermediates between homogenous and heterogeneous mixtures?

To which of the following solvent-solute combinations does the term "alloy" apply?

Which term is used to refer to the solid component of a solid-in-liquid solution?

A student is preparing a sugar-water solution to make rock candy. When the student continues to add sugar to the solution, the sugar dissolves. Which kind of solution is the student preparing?