How Do Solids Change?

18 Questions | Total Attempts: 131

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How Do Solids Change?

Learn about the characteristics of a physical change and the chemistry of solubility. � Light bulb questions require a little extra thought. Don't be skeered. � Use with inquiryinaction. Org �


Questions and Answers
  • 1. 
    Curious Crystals What do sugar and salt have in common?
    • A. 

      Taste

    • B. 

      Apperance

    • C. 

      Chemical composition

    • D. 

      Nothing

  • 2. 
    What are physical properties? Some substances _____________ the same, but behave ____________________. Two words one space between.
  • 3. 
    What are physical properties?  Physical properties of a solid are characteristics which can be observed or measured, such as:
    • A. 

      Boiling point

    • B. 

      Ionization level

    • C. 

      Shape

    • D. 

      Size

    • E. 

      Texture

  • 4. 
    What are physical properties? Some physical properties are harder to measure, like __________  and ________________. Two words. One space between. 
  • 5. 
    Physical Change A physical change is something that ___________ the form or _____________ of a material without changing the chemical composition. Two words. One space between. 
  • 6. 
    Physical Change When water (H2O) changes from solid ice to liquid water ...
    • A. 

      Neither a physical or chemical change occurs

    • B. 

      No physical change has occured

    • C. 

      No chemical change has occured

    • D. 

      A physical and chemical change occur

  • 7. 
    Why do salt snd sugar dissolve differently? Na is the symbol for _______________. An ion has an positive or negative _______________ . Positive and negative ions for an ____________  bond.
    • A. 

      Sodium

    • B. 

      Niacin

    • C. 

      Charge

    • D. 

      Nucleus

    • E. 

      Covelant

    • F. 

      Ionic

  • 8. 
    The Ionic Bond In Salt An ionic bond forms from the attraction between two oppositely charged _________________ .
  • 9. 
    The Ionic Bonds in Salt Take a look at the video of the salt pattern.   Salt looks like a ________________.
    • A. 

      Oblique

    • B. 

      Sphere

    • C. 

      Pentagon

    • D. 

      Cube

  • 10. 
    Water on the Molecular Level The oxygen in the water molecule has a greater ______________  for _________________  than the hydrogen has.
  • 11. 
    Water on the Molecular Level The area around the oxygen is  slightly   ___________  charged and the area around the hydrogen is slightly positively charged.
  • 12. 
    Water on the Molecular Level The area around the oxygen is  slightly  negatively charged and the area around the hydrogen is slightly ___________________  charged.
  • 13. 
    Dissolving Salts Watch the animation.  Check the two boxes  of the molecules that attract each other when salt dissolves in water.
    • A. 

      Positive end of water molecule

    • B. 

      Positive end of chloride ion

    • C. 

      Negative chloride ion

    • D. 

      Negative ions dissolve

  • 14. 
    Salt Dissolved in Water Once the salt crystal is dissolved in water, the positively charged sodium ions and the negatively charged chloride ions are associated with the oppositely charged _______________  ends of many water molecules.
  • 15. 
    Sugar on the Molecular Level This slide is messed up.  If you can figure out why, tell me in the box below. If you can't go to the next question.  This question will not be graded. BONUS POINTS only
  • 16. 
    Sugar Dissolves in Water Because sucrose has positive and negative areas and water has positive and negative areas, water molecules are attracted to the _______________  _______________ area on the sucrose molecules.
  • 17. 
    Solubility is a Characteristic Property The amount of attraction water molecules have for particles of a solid compared to the attraction the solid particles have for each other determines __________________________ .
    • A. 

      Ionic bonding

    • B. 

      Solubility

    • C. 

      Insoluablity

    • D. 

      Molecular ending

  • 18. 
    Solubility is a Characteristic Property Water molecules ________________ differently with the ions in salt than they do with the molecules in sugar.