The Living World 8th Edition by George Johnson

تمرين 11

Water has some very unusual properties. These properties occur because of the
A) hydrogen bonds between the individual water molecules.
B) covalent bonds between the individual water molecules.
C) hydrogen bonds within each individual water molecule.
D) ionic bonds between the individual water molecules.
Which of the following properties of water is explained by the need for significant heat energy to break many hydrogen bonds?
A) cohesion and adhesion
B) hydrophobic and hydrophilic
C) heat storage and heat of vaporization
D) ice formation and high polarity
The attraction of water molecules to other water molecules is called
A) cohesion.
B) capillary action.
C) solubility.
D) adhesion.
If you add ice cubes to a glass half-full of water, what happens to the level of water in the glass? Does it rise or fall? Explain why.