Which of the following is true of water?
A)The oxygen end is slightly electropositive.
B)Hydrogen bonds hold water molecules together.
C)Water covers about one-half of the earth's surface.
D)It participates in hydrophobic interactions with polar molecules.
E)Its solvent properties are greatest with nonpolar molecules.

Question

Quizplus · Accepted Answer

Hydrogen bonds hold water molecules together. This is because the oxygen atom in water is partially negative and the hydrogen atoms are partially positive, allowing for the formation of hydrogen bonds between adjacent water molecules. The other choices are incorrect as the oxygen end is actually slightly electronegative (not electropositive), water covers about 71% (not one-half) of the earth's surface, water participates in hydrophilic interactions with polar molecules (not hydrophobic), and its solvent properties are greatest with polar (not nonpolar) molecules.

Which of the Following Is True of Water