Science 7 Block Assessment/Quiz #4 PDF

Science 7 Block Assessment/Quiz #4 Multiple Choice: 1. Which of the following solutions will best conduct electricity? a) Pure water b) Sugar solution c) Sodium chloride solution d) Ethanol solution 2. What happens to the c...

Science 7 Block Assessment/Quiz #4 Multiple Choice: 1. Which of the following solutions will best conduct electricity? a) Pure water b) Sugar solution c) Sodium chloride solution d) Ethanol solution 2. What happens to the conductivity of a solution as the concentration of ions increases? a) Conductivity decreases b) Conductivity increases c) Conductivity remains the same d) Conductivity fluctuates 3. Which factor affects the volatility of a solution? a) Temperature b) Pressure c) The nature of solute and solvent d) All of the above 4. 4. A solution has lower volatility compared to pure solvent due to the presence of: a) Nonvolatile solute b) Volatile solute c) Water d) Ionic compounds 5. What is volatility? a) The tendency of a liquid to solidify b) The ability of a liquid to vaporize easily c) The ability of a gas to condense d) The resistance of a liquid to freeze 6. Which of the following increases the volatility of a solution? a) Adding a nonvolatile solute b) Increasing the temperature c) Lowering the vapor pressure  d) Decreasing the solvent concentration 7. In a solution, the volatility of the solvent decreases because: a) The solute occupies space at the surface b) The solvent molecules evaporate faster c) The solute evaporates faster d) There are more free solvent molecules 8. Adding a solute to a solvent will typically cause the boiling point of the solution to: a) Increase b) Decrease c) Remain the same d) Fluctuate randomly 9. The freezing point of a solution is lower than that of the pure solvent because: a) The solution contains less solvent b) The solute disrupts the freezing process c) The solution is more concentrated d) The temperature of the solution is higher 10. Boiling point elevation occurs when: a) The solvent evaporates quickly b) The solute raises the vapor pressure c) The solute lowers the vapor pressure d) The solution is heated 11. Freezing point depression can be explained by: a) The reduction in energy required for solute molecules to escape b) The disruption of solvent molecules’ ability to form a solid structure c) The increase in vapor pressure d) The decrease in osmotic pressure 12. Which of the following has the greatest impact on freezing point depression? a) The amount of solute added b) The nature of the solvent c) The surface area of the container d) The atmospheric pressure 13. Osmotic pressure depends on which of the following? a) The nature of the solute b) The number of solute particles c) The color of the solution d) The viscosity of the solvent 14. Osmosis involves the movement of solvent molecules from an area of: a) High solute concentration to low solute concentration b) Low solute concentration to high solute concentration c) High solvent concentration to low solvent concentration d) Low solvent concentration to high solvent concentration 15. What happens to osmotic pressure when the concentration of solute increases? a) It decreases b) It remains the same c) It increases d) It fluctuates randomly 16. Which of the following statements about boiling point elevation is correct? a) It only occurs in ionic solutions b) It occurs because solutes lower the vapor pressure of the solvent c) It depends on the chemical nature of the solute d) It is inversely proportional to solute concentration 17. A solution that freezes at a lower temperature than its pure solvent illustrates the phenomenon of: a) Osmosis b) Freezing point depression c) Boiling point elevation d) Nonelectrolyte properties 18-20. Essay Question: In what ways can the principles of boiling point elevation, freezing point depression, and osmotic pressure be combined with the Faithians' approach to overcoming obstacles through spiritual strength? How can these properties serve as metaphors for how individuals, through faith, are strengthened or protected in difficult circumstances, with the belief that faith in God offers protection and guidance in solving life’s problems?