Week in Review (April 11th)

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility

• lowering the temperature of the solvent

• stirring the solute in the solution

• increasing the pressure on the solution

• increasing the particle size of the solute

Which of the following substances is a heterogeneous substance?

• baby oil
• rocky road ice cream
• salt water
• milk

Which of the following substances is a homogeneous solution?

• chocolate chip cookie
• italian dressing
• apple juice
• orange juice

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

Another name for a homogeneous mixture is 

• an element.
• a solution.
• a compound.

If water is a polar molecule, then which of the following must be nonpolar

• sugar

• salt

• oil

• juice

Since "like dissolves like", water and oil will not mix because

• both of them are polar

• both of them are nonpolar

• oil is polar and water is nonpolar

• oil is nonpolar and water is polar

What is a solute?

• A solute is a substance that is not dissolved in a solvent.

• A solute is a substance that forms a solid in a solution.

• A solute is a substance that evaporates when mixed with a solvent.

• A solute is a substance that is dissolved in a solvent to form a solution.

What is a solvent?

• A solvent is a substance that dissolves a solute, resulting in a solution.

• A solvent is a substance that separates a solute, resulting in a solution.

• A solvent is a substance that solidifies a solute, resulting in a solution.

• A solvent is a substance that evaporates a solute, resulting in a solution.

How does temperature affect the solubility of a solute in a solvent?

• Increasing temperature increases the solubility of a solute in a solvent.

• Decreasing temperature increases the solubility of a solute in a solvent.

• Increasing temperature decreases the solubility of a solute in a solvent.

• Temperature has no effect on the solubility of a solute in a solvent.