Water: Properties and Behavior

Which of the following is not a property of water?

• a.Hydrogen bonds exist only in the solid state.
• b.It can dissolve ionic and polar molecules.
• c.It has a high surface tension.
• d.The solid state is less dense than the liquid state.

Water’s unique properties arise because of its ability to form strong:

• a.covalent bonds
• b.dipole bonds
• c.hydrogen bonds
• d.ionic bonds

Ice floats on water because:

• a.liquid water is less dense than ice
• b.water's surface tension is strong enough to support the ice
• c.there is oxygen dissolved in liquid water
• d.the molecules in ice are farther apart than the molecules in liquid water

A property of water that is vital to supporting life is that:

• a.water is transparent
• b.water can dissolve a wide variety of substances
• c.water is found naturally on Earth as a liquid, solid, and gas
• d.water molecules are not charged

Cohesion is:

• a.exemplified by the action of water droplets sticking to your drinking glass
• b.a property that allows water to dissolve certain substances
• c.a phenomenon that occurs only at the surface of water
• d.an attraction between molecules of the same kind

Delle Colombe’s ebony disk did not sink in water because:

• a.Water molecules on the surface of water form strong hydrogen bonds that can withstand the distributed weight of the disk.
• b.The disk was flat, and all flat objects will remain suspended on the surface of water.
• c.Water droplets that form on the bottom of the disk connect to each other and support the disk.
• d.Ebony is less dense than water.

Oxygen can dissolve in water because:

• a.polar water molecules induce a temporary dipole in oxygen molecules
• b.oxygen gas is made of polar molecules
• c.water is a bipolar molecule
• d.both water and oxygen gas are small molecules, so there is sufficient space for one to dissolve in the other

Drops of dew on a leaf owe their spherical appearance to:

• a.cohesion
• b.adhesion
• c.the density of water
• d.cohesion, adhesion, and surface tension

Capillary action of water in a tube is the result of _____ being stronger than _____.

• a.cohesion; adhesion
• b.adhesion; cohesion
• c.surface tension; cohesion
• d.cohesion; surface tension

A frozen lake in winter with fish swimming below the surface is possible because of which property of water:

• a.cohesion
• b.adhesion
• c.low molecular weight
• d.polarity