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Flashcards in Water Properties Deck (12):
1

Special properties due to chemical structure

-Hydrogen-oxygen bond of water is polar
-Hydrogen bond hold water molecules close together
-Covalent bond connect hydrogen and oxygen

2

Three physical states

solid (ice), liquid, gas (water vapor)
- water vapor moves rapidly
-liquid moves slower
-solid ice moves slowest, forms crystal structure

3

lots of energy to melt or evaporate

hydrogen bonds take extra energy to change states
- additional heat (latent heat of vaporization) to evaporate beyond 100 C
-additional removed heat (latent heat of fusion) to freeze beyond 0C
-Salt raises boiling point and decrease freezing point

4

Unusually high latent heat of vaporization important for earth's climate

greater evaporation at low latitudes and greater precipitation at high latitudes

5

High heat capacity

increase in temperature to increase motion of water molecules
-slow to heat
-slow to cool

6

High surface tension

hydrogen bonds
-can support small objects

7

High level of viscosity

resistant to flow
-more viscous add more stuff

8

Not very compressible

even at high pressure, doesn't compress

9

density changes with temperature and salinity

~density decreases with increasing temperature
~density increase with increasing salinity

10

Good solvent

dissolves and errodes

11

transparent to visible light

gradually absorb light
light zone to 200 m

12

Transmits sound

sound travel farther but slower