Properties of Water

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Properties of Water
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Organic and Inorganic Molecules

• Structures Important to Life
• --- Organic Compounds contain carbon (from
  living things)
• --- Inorganic Compounds no carbon
  (nonliving)

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(No Transcript)
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Water (H2O)

• - Polar compound with a (-) charge and a ()
  charge.
• O -
  
• H H

-
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Hydrophilic vs. Hydrophobic

• hydrophobic water-fearing
• does not like water
• (nonpolar things)
• ex. Fats, oils, waxes
• hydrophilic water-loving
• attracted to water (polar things)

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Hydrophobic or Hydrophilic?
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Water Polarity Causes

• 1. Effective solvent (substances dissolved in
  it). Universal solvent
• 2. Surface tension forming of a thin layer
  caused by cohesion (attraction between like
  molecules)

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Water Polarity Causes

• 3. Adhesion attraction of different molecules.
• Example capillarity (ability of a liquid to be
  drawn up a tube)

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• 4. High specific heat takes a lot of energy to
  change the temperature of H2O
• helps maintain a constant body temp
  (warm-blooded)

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• 5. Water can exist in 3 phases (solid, liquid,
  and gas). H2O is denser as a liquid than as a
  solid.

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Definition

• Linking polymers
• - dehydration synthesis or condensation
  reaction joining of monomers by releasing H2O.
• Ex. Making muscle tissue
• - hydrolysis reaction breaking down of
  polymers into monomers by adding H2O.
• Ex. digestion

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Condensation or Hydrolysis?
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Condensation or Hydrolysis?
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Condensation or Hydrolysis
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What is this reaction called? Is this hydrolysis
or dehydration synthesis?
What is this reaction called? Is this hydrolysis
or dehydration synthesis?
6CO2 6 H20 Energy -----gt C6H12O6 6O2
C6H12O6 6O2 -----gt 6CO2 6 H20 Energy