Exploring Solutions and Interactions

Which of the following best defines surface tension?

• The force that holds the molecules of a solid together

• The energy required to increase the surface area of a liquid

• The attraction between ions in a solution

• The process of dissolving a solute in a solvent

What type of bond is primarily responsible for the high boiling point of water?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

Which of the following is an example of an electrolyte?

• Sugar solution

• Distilled water

• Sodium chloride solution

• Oil

What is the term for a substance that dissolves in a solvent to form a solution?

• Solute

• Colloid

• Suspension

• Surfactant

Which law relates the solubility of a gas in a liquid to the pressure of the gas above the liquid?

• Boyle’s Law

• Henry’s Law

• Charles’s Law

• Dalton’s Law

What is a super saturated solution?

• A solution that contains less solute than it can hold

• A solution that contains more solute than it can normally hold at a given temperature

• A solution with no solute

• A solution that is in equilibrium

Which of the following best describes a colloid?

• A homogeneous mixture with particles that settle out

• A heterogeneous mixture with large particles

• A mixture with particles that do not settle and scatter light

• A pure substance

Which of the following is NOT a property of surfactants?

• They reduce surface tension

• They increase the solubility of nonpolar substances in water

• They form ionic bonds with water molecules

• They can act as detergents

Which of the following is a non-electrolyte?

• Sodium chloride

• Potassium nitrate

• Glucose

• Hydrochloric acid

What happens to the solubility of most solid solutes as temperature increases?

• It decreases

• It remains the same

• It increases

• It becomes zero