1. REVIEW
Properties of Water
Chemistry of Life

2. Atomic number =
# of protons =
# of electrons

3. What is this?
Of which element?
An atom
Lithium

4. What is a pure substance composed
of two or more elements?
COMPOUND
C6H12O6

5. What is a pure substance composed
of one type of atom?
ELEMENT

6. ELEMENT or COMPOUND
CO2 H Na Br
CaCl2
BaCO3

7. How many electrons? 8
How many protons? 8

8. ELEMENT or COMPOUND

9. ?
Chemical bond

10. Hydrogen
bonds ?

11. Polar or
Nonpolar
Polar

12. Polar or
Nonpolar

13. Polar or
Nonpolar

14. H2O O H H
Water is polar!

15. Water has a high specific heat.
During the hot summer, the pond’s temperature remains
at a warm 82° F. This is an example of
Water has a high specific heat.

16. cohesion Water forms beads on the surface of this leaf.
This is an example of
cohesion

17. Water sticks to the grass.
This is an example of
adhesion

18. What happening on the surface?
cohesion

19. What happening here? ?
adhesion

20. ?

21. Hydrogen bonding
Cohesion and adhesion occur because of

22. ?
solute ?
solvent

23. ? ? ?

24. Why is the paper clip floating?
Surface tension

25. Why does water form a sphere in the space station?
Cohesion

26. ?
cohesion
adhesion ?

27. Water is a common cleaning agent.
It is most effective for dissolving substances
with which characteristic?
a) polar bonds
b) high density
c) high specific heat
d) covalent bonding

28. What accounts for many of the unique properties
of water that make it essential for life?
a) covalent bonding between water molecules
b) covalent bonding between oxygen and hydrogen
c) high specific heat
d) hydrogen bonding between water molecules

29. What property of water allows ice to float?
a) ice is less dense than liquid water
b) ice is more dense than liquid water
c) ice has a high specific heat
d) water has a high specific heat

30. Which property causes the cohesion and adhesion
of water molecules that moves water through a plant
against the force of gravity?
a) density
b) volume
c) polarity
d) heat capacity

31. Acid
Base

32. Not complete
Examples of ph

33. Chemical bond where electrons
are shared?
Covalent bond

34. Chemical bond where electrons
are transferred?
Ionic bond

35. Everyone A’s and B’s
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