chapter 9 water n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Chapter 9: Water PowerPoint Presentation
Download Presentation
Chapter 9: Water

Loading in 2 Seconds...

play fullscreen
1 / 9

Chapter 9: Water - PowerPoint PPT Presentation


  • 85 Views
  • Uploaded on

Chapter 9: Water. Block 1 Pink Table. Objectives and Vocabulary. Objectives Relate water’s composition and structure to its properties. Compare bonds in water. Explain the functions of heat of fusion and heat of vaporization. Explain the effect of air pressure changes on boiling point.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Chapter 9: Water' - junior


Download Now An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
chapter 9 water

Chapter 9:Water

Block 1

Pink Table

objectives and vocabulary
Objectives and Vocabulary
  • Objectives
    • Relate water’s composition and structure to its properties.
    • Compare bonds in water.
    • Explain the functions of heat of fusion and heat of vaporization.
    • Explain the effect of air pressure changes on boiling point.
    • Explain sublimation and surface tension.
    • Explain the functions of water in food preparation.
    • Describe hard and soft water.
    • Describe how the body uses water.
  • Vocabulary
    • Boiling point
    • Bound water
    • Colloidal dispersion
    • Density
    • Emulsifier
    • Emulsion
    • Free water
    • Hard water
    • Heat of fusion
    • Heat of vaporization
    • Hydrogen bond
    • Immiscible
    • Latent heat
    • Medium
    • Melting point
    • Polar molecule
    • Solubility
    • Solute
    • Solvent
    • Sublimation
    • Surface tension
what you learn
What You Learn
  • The water molecule
  • Properties of water
  • Water and foods
  • Water and the body
the water molecule
The Water Molecule
  • Polar covalent bond
    • Electronegativity
    • A molecule with a clear division of opposite electrical charges
  • Hydrogen bonds
    • Strongly attracts
    • An attractive force between any molecules in which hydrogen is covalently bound to a highly electronegative element
properties of water
Properties of Water
  • Water is the medium
    • A substance through which something is transmitted or carried
  • Freezing and Melting
    • Melting point: a temperature that changes a substance from a solid to a liquid
    • Density: mass
    • Heat of fusion: energy needed to change one gram of a substance from a solid to a liquid or a liquid to a solid
      • Latent heat: energy required to cause a phase change without a change in temperature
properties of water continued
Properties of Water Continued
  • Boiling and Condensing
    • Boiling point: temperature when vapor pressure equals air pressure above the liquid
    • Heat of vaporization: amount of heat needed to change one gram of a substance from a liquid to a gas
  • Sublimation: a change from the solid phase directly into the gas phase
  • Surface Tension: an inward force or pull that tends to minimize the surface area of a liquid
water and foods
Water and Foods
  • Water content in food
    • Free water: readily separates from foods that are sliced, diced, or dried
    • Bound water: water that cannot be easily separated in food
  • Water in heat transfer
  • Water as a solvent
    • Solvent: substance dissolved in solute
    • Solubility: amount dissolved at certain temperature
    • Hard water: water that contains calcium or magnesium ions
water and foods continued
Water and Foods Continued
  • Water as a dispersing medium
    • Colloidal dispersion: homogeneous mixture that is not a true solution
    • Emulsion: liquid droplets that don’t normally blend together
    • Immiscible: liquids that don’t blend or mix
    • Emulsifier: large molecules that are polar on one end and nonpolar on the other
    • Water as an emulsifier: www.youtube.com/watch?v=qcumEy6nhgY
water and the body
Water and the Body
  • Water weight
  • Staying active
  • Staying hydrated