Unit 8 - Chemical Compound Review

25 Questions

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Chemical Compound Quizzes & Trivia

We have just finished covering unit 8 in class today. The simple quiz below is set to help you review what you understood about chemical compounds, their formation, appearance and reaction. Give it a go and share your scores in the comment section. Best of luck as you tackle it.


Questions and Answers
  • 1. 
    A _____ is a large moelcule made of carbon and hydrogen atoms.
    • A. 

      Hydrocarbon

    • B. 

      Solute

    • C. 

      Hydrogen oxide

    • D. 

      Solvent

  • 2. 
    Adding a solute to a solvent _____ the freezing point of a solvent.
    • A. 

      Lowers

    • B. 

      Raises

    • C. 

      Does not change

    • D. 

      Doubles

  • 3. 
    Air contains 78 percent nitrogen, 21 percent oxygen, and one percent argon. Which gas is the solvent?
    • A. 

      Argon

    • B. 

      None of the answers are correct

    • C. 

      Nitrogen

    • D. 

      Oxygen

  • 4. 
    What characteristic of water makes it the universal solvent?
    • A. 

      Nonpolar

    • B. 

      Large molecules

    • C. 

      Long-chain hydrocarbon

    • D. 

      Polar

  • 5. 
    Why is it dangerous to take large doses of some nonpolar vitamins?
    • A. 

      They are water soluble and become concentrated in body tissues.

    • B. 

      These substances cannot be utilized by the body.

    • C. 

      They are fat soluble and accumulate in body tissues.

    • D. 

      They cannot dissolve in fat and instead dissolve in the water inside body cells.

  • 6. 
    Gases are _____ in cooler solvents.
    • A. 

      Insoluble

    • B. 

      Less soluble

    • C. 

      More soluble

    • D. 

      Precipitates

  • 7. 
    Which attributes enables water molecules to dissolve sugar?
    • A. 

      Nonpolarity of water

    • B. 

      Liquid state of the solute

    • C. 

      Stationary nature of water molecules

    • D. 

      Electrical charge

  • 8. 
    Sterling silver contains 92.5 percent silver and 7.5 percent copper. Which substance is the solute?
    • A. 

      Solids do not form solutions

    • B. 

      Platinum

    • C. 

      Silver

    • D. 

      Copper

  • 9. 
    Because electrons are distributed equally, a hydrocarbon is ____.
    • A. 

      Insoluble

    • B. 

      Nonpolar

    • C. 

      Polar

    • D. 

      Nontoxic

  • 10. 
    Vitamin C is a(n) _____ compound and dissolves readily in water.
    • A. 

      Polar

    • B. 

      Oily

    • C. 

      Nonpolar

    • D. 

      Fat soluble

  • 11. 
    Which of the following statements is true?
    • A. 

      Nonpolar solvents are useful for dissolving polar solutes.

    • B. 

      Polar solvents are useful for dissolving nonpolar solutes.

    • C. 

      Nonpolar solvents are not useful because they do not form solutions with water.

    • D. 

      Nonpolar solvents are useful for dissolving nonpolar solutes.

  • 12. 
    Which of the following is the most precise term?
    • A. 

      Supersweet

    • B. 

      Dilute

    • C. 

      40 percent juice by volume

    • D. 

      Concentrated

  • 13. 
    Which of the following increases rate of evaporation?
    • A. 

      Decreasing surrounding temperature

    • B. 

      Increasing attraction between solvent moelcules

    • C. 

      Combining polar solvents with polar solutes

    • D. 

      Decreasing attraction between solvent molcules

  • 14. 
    The process in which water molecules draws ions away from a crystalline solid and into solution is _____.
    • A. 

      Supersaturation

    • B. 

      Nonpolarization

    • C. 

      Concentration

    • D. 

      Dissociation

  • 15. 
    Which of the actions increases the rate of dissolving?
    • A. 

      Stirring the solution

    • B. 

      Decreasing the pressure

    • C. 

      Using larger-sized crystals

    • D. 

      Decreasing the temperature

  • 16. 
    A mixture that appears to have the same composition, color, and density and is mixed at the molecular level is called a(n) ____.
    • A. 

      Element

    • B. 

      Suspension

    • C. 

      Solution

    • D. 

      Heterogenous mixture

  • 17. 
    _____ is the maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature.
    • A. 

      Polarity

    • B. 

      Concentration

    • C. 

      Supersaturation

    • D. 

      Solubility

  • 18. 
    A solution that contains all the solute it can hold at a given temperature is _____.
    • A. 

      Unsaturated

    • B. 

      Supersaturated

    • C. 

      Soluble

    • D. 

      Saturated

  • 19. 
    ____ are compounds that form charged particles.
    • A. 

      Nonpolar components

    • B. 

      Ions

    • C. 

      Electrolytes

    • D. 

      Nonelectrolytes

  • 20. 
    Which of the following is a solution?
    • A. 

      Muddy water

    • B. 

      Chlorine

    • C. 

      Milk

    • D. 

      Salt water

  • 21. 
    Match the vocab on the right with the definition on the left.
    • A. any solution that can dissolve more solute at a given temperature
    • A.
    • B. a solution that contains more solute than a saturated one at the same temperature
    • B.
    • C. a solution that contains all the solute it can hold at a given temperature
    • C.
    • D. the maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature
    • D.
  • 22. 
    Match the vocab on the right with the definition on the left.
    • A. molecules with no separated positive and negative areas
    • A.
    • B. molecules with a positive and negative area
    • B.
    • C. a mixture that has the same composition, color, density and taste throughout
    • C.
    • D. the substance being dissolved
    • D.
    • E. the substance doing the dissolving
    • E.
  • 23. 
    Match the vocab on the right with the definition on the left.
    • A. charged particles
    • A.
    • B. solid solution
    • B.
  • 24. 
    Match the vocab on the right with the defintion on the left.
    • A. the process in which an ionic solid separates into positive and negative ions
    • A.
    • B. molecules broken apart in such a way that the atoms take on a charge; the process of forming ions
    • B.
  • 25. 
    Match the vocab on the right with the defintion on the left.
    • A. substances that form no ions in water and cannot conduct electricity
    • A.
    • B. solutions of ions that conduct electricity in water
    • B.