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Question Set: Comparison of Liquids and Compounds

  1. Explain what the phrase “They get along like oil and water” means. 
  2. Explain why nonpolar gasoline would or would not be a better solvent for a salt than water.
  3. Butter and grease are nonpolar compounds. What happens to greasy plates when dunked in plain water? What do you need to thoroughly clean a greasy dish? 
  4. Explain why detergents in water make the mixture a better solvent for ionic, polar, and nonpolar compounds than water alone.
Exploring Our Fluid Earth, a product of the Curriculum Research & Development Group (CRDG), College of Education. University of Hawaii, 2011. This document may be freely reproduced and distributed for non-profit educational purposes.