3. + - POLAR COVALENT UNEVEN Water is a ____________________ molecule
___________ pattern of electric charge
______ & ________ poles
UNEVEN

4. Water molecules form _____________bonds with each other
+ from one molecule attracted to – of neighbor
Makes molecules “__________”
HYDROGEN
STICKY

5. HYDROGEN BONDING PRODUCES _____________PROPERTIES OF WATER
______________
___________________________
________________________________
___________________
HIGH HEAT OF FUSION
THERMAL CONDUCTIVITY
EMERGENT
COHESION
ADHESION
“UNIVERSAL” SOLVENT
HIGH HEAT OF VAPORIZATION
ICE FLOATS

6. HYDROGEN BETWEEN Surface tension COHESION
___________ bonding __________ water molecules makes them stick together
_______________
Water has a “skin”
Tends to “bead up”
Drinking straw
HYDROGEN
BETWEEN
Surface tension

7. OTHER CAPILLARY ACTION MENISCUS ADHESION
ADHESION
HYDROGEN bonding between water and ________molecules makes them stick to substances
_____________________
Water climbs up paper towel
______________________
OTHER
CAPILLARY ACTION
MENISCUS

8. PLAY MOVIE HERE

10. HYDROPHILIC _______________ WATER “loving” POLAR ionic
__________ molecules are attracted to water
____________
_____________________
WATER “loving”
POLAR
ionic
“Like dissolves like”

11. HYDROPHOBIC _______________ WATER “fearing” NON POLAR Non-ionic
____________ molecules move away from water
____________
_____________________________
WATER “fearing”
NON POLAR
Non-ionic
“Oil and water don’t mix”

12. HIGH SPECIFIC HEAT CHANGES MODERATES
Resists ___________ in temperature
takes a lot to heat it up
takes a lot to cool it down
_______________ temperatures on Earth
CHANGES
MODERATES

14. WATER HAS HIGH HEAT OF VAPORIZATION
Lots of _______ required to change from liquid to gas because water is a poor thermal conductor.
ENERGY

16. WATER HAS HIGH HEAT OF FUSION
_______ required to change from solid to liquid
ENERGY

17. Most (ALL?)substances are
ICE FLOATS !
Most (ALL?)substances are
_______dense as solids than liquids.
NOT WATER!
__________ bonds form a crystal with loose structure so SOLID ICE is ______________ than LIQUID WATER.
MORE
HYDROGEN
LESS DENSE

18. http://www. destination360

19. WATER FORMS IONS
If concentration of two ions is ______, water is ____________
If [H+] > [OH-], water is ________
If [H+] < [OH-], water is ________.
EQUAL
NEUTRAL
ACIDIC
BASIC

21. Log scale like Richter for measuring earthquakes
Solution A is _____ times _________ acidic than solution B
pH = -log([H+])
A pH = 2
B pH = 5
1000
more

22. Log scale like Richter for measuring earthquakes
Solution B is _____ times _________ acidic than solution A
A pH = 9
B pH = 7
100
more

23. pH scale measures amount of acidity or [H+]
1 X10 =[H+] pH =___
[H+] [OH-] = 10
If [H+] = 10 , then [OH-] = 10 -7 7 -4 4
-14 -6 -8