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Tutorial 1
Study Area 2
Water
1. Water molecules have a polarity that allows them to bond to each other with loose bonds called _____.
A) hydrogen bonds B) ionic bonds C) acid bonds D) nonpolar bonds E) none of the above
2. Most of water's unique properties result from the fact that water molecules _____.
A) are very small B) tend to repel each other C) are extremely large D) tend to stick together E) are in constant motion
3. Each water molecule is joined to _____ other water molecules by ____ bonds.
A) two ... hydrogen B) four ... hydrogen C) three ... ionic D) four ... polar covalent E) two ... polar covalent
4. The unequal sharing of electrons within a water molecule makes the water molecule _____.
A) change easily from a liquid to gaseous form B) ionic C) hydrophobic D) polar E) have a low surface tension
5. The tendency of an atom to pull electrons toward itself is referred to as its _____.
A) electronegativity B) covalency C) ionic potential D) polarity E) tonicity
6. In this molecule, what type of bond is found between the oxygen and hydrogen atoms?
A) polar covalent B) hydrophobic C) ionic D) hydrophilic E) nonpolar covalent
7. Why isn't this insect drowning?
A) Surface tension. B) The insect is very light. C) It is difficult to change the temperature of water. D) The insect is swimming. E) The insect is flying just above the water surface
8. Ice floats because _____.
A) it is colder than liquid water B) its molecules are moving faster than in liquid water C) it is denser than liquid water D) its hydrogen molecules bond to the water surface film E) its water molecules are farther apart than in liquid water
9. Sodas typically contain sugar, flavorings, coloring agents, and
Tutorial 1
Study Area 2
Water
1. Water molecules have a polarity that allows them to bond to each other with loose bonds called _____.
A) hydrogen bonds B) ionic bonds C) acid bonds D) nonpolar bonds E) none of the above
2. Most of water's unique properties result from the fact that water molecules _____.
A) are very small B) tend to repel each other C) are extremely large D) tend to stick together E) are in constant motion
3. Each water molecule is joined to _____ other water molecules by ____ bonds.
A) two ... hydrogen B) four ... hydrogen C) three ... ionic D) four ... polar covalent E) two ... polar covalent
4. The unequal sharing of electrons within a water molecule makes the water molecule _____.
A) change easily from a liquid to gaseous form B) ionic C) hydrophobic D) polar E) have a low surface tension
5. The tendency of an atom to pull electrons toward itself is referred to as its _____.
A) electronegativity B) covalency C) ionic potential D) polarity E) tonicity
6. In this molecule, what type of bond is found between the oxygen and hydrogen atoms?
A) polar covalent B) hydrophobic C) ionic D) hydrophilic E) nonpolar covalent
7. Why isn't this insect drowning?
A) Surface tension. B) The insect is very light. C) It is difficult to change the temperature of water. D) The insect is swimming. E) The insect is flying just above the water surface
8. Ice floats because _____.
A) it is colder than liquid water B) its molecules are moving faster than in liquid water C) it is denser than liquid water D) its hydrogen molecules bond to the water surface film E) its water molecules are farther apart than in liquid water
9. Sodas typically contain sugar, flavorings, coloring agents, and