A water strider can skate along the top of a pond because:
covalent bonds result in water cohesion
hydrogen bonds result in water cohesion (surface tension)
water striders have adapted to take advantage of water cohesion
low surface tension of water
3. Multiple Choice
45 seconds
1 pt
What word describes when water is attracted to other substances?
cohesion
adhesion
capillary action
surface tension
4. Multiple Choice
45 seconds
1 pt
The weak attractions between water molecules are called
Covalent bonds
Ionic bonds
Polar bonds
Hydrogen bonds
5. Multiple Choice
45 seconds
1 pt
Water’s attraction to other water molecules
adhesion
capillary action
cohesion
surface tension
6. Multiple Choice
45 seconds
1 pt
Which is NOT a unique property of water?
Frozen water floats on liquid water.
Water covers most of the Earth’s surface and retains a large amount of heat.
Water molecules stick to each other through hydrogen bonds.
Water cools very rapidly.
7. Multiple Choice
45 seconds
1 pt
Water is polar because...
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
The molecule has two poles, at which the it is colder than other regions of the molecule.
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
The water molecule is neutral.
8. Multiple Choice
45 seconds
1 pt
Tendency of molecules of the same kind to stick to one another
cohesion
adhesion
solution
polar molecule
9. Multiple Choice
45 seconds
1 pt
Molecule in which opposite ends have opposite electric charges
cohesion
polar molecule
hydrogen bond
solution
10. Multiple Choice
45 seconds
1 pt
Water is known as the universal solvent.
True
False
11. Multiple Choice
45 seconds
1 pt
Which end of the water molecule has a slightly positive charge?
the oxygen end
the hydrogen end
both ends are slightly positive
neither end is positive
12. Multiple Choice
45 seconds
1 pt
Which of the following is LEAST likely to dissolve in water?
nonpolar fats and oils
polar sugar molecules
salt made of a positive sodium ion and a negative chloride ion
all of the substances will dissolve easily in water
13. Multiple Choice
45 seconds
1 pt
Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?
adhesion
surface tension
solvent properties
nonpolar
14. Multiple Choice
45 seconds
1 pt
Which part(s) of a water molecule has/have a partial negative charge?
the two hydrogen (H) atoms
the two oxygen (O) atoms
the one hydrogen (H) atom
the one oxygen (O) atom
15. Multiple Choice
45 seconds
1 pt
Which types of compounds dissolve easily in water?