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8 Cards in this Set

  • Front
  • Back
water molecules rapidly and repeatedly bond/breaking w/ one another
water sticking to other substances
surface tension
difficulty of stretching/ breaking surface water molecules.
moderation of temperture
effective heat bank
* heat: total amount of kinetic E in a body of matter
* temp. avg kinetic E of body of matter:
A. 0 degrees C water freezes
B. 100 degrees C water boils
C. 37 degrees C human body temp.
water's high specific heat
(moderation of temp.) cont.
amnt of heat required to raise -1g of substance 1 degree C.
a. 1 cal: water
b. 0.6 cal: ethanol
c. 0.1 cal: iron
* is how it can bond to H
* aquatic organism's temp. range less that terrestrial organisms
* coastal temp. range vs. continental
* individual thermoregulaion
evaporative cooling
(moderation of temp.) cont.
* high heat of vaporization
* panting or sweating
* hydrologic cycle moderating climate
insulation of bodies waterby floating ice
* water is less dense in solid vs. liquid
-begins expanding below 4 degrees C
- molecules become locked together
- aquatic communities are protected
the solvent of life
*solvent+ solute = solution
* Water is versital but not universal
- can form hydration shells around ionic substances
- ionic and polar regions of nonionic compounds enable water solubility
* hydrophillic and hydrophobic substances
* solute concentration in aqueous solutions
* Mole of a substance:
- a # (g) that is = to the molecular weight of the substances (dal)
- a dozen: a 12 count of an object 23
- 6.02 x 10 molecules
* molarity: # of moles of solute/ liter of solution