Properties of Water

Front

Attractions between water molecules are called

Back

Hydrogen bonds

Front

Why don't oil and water mix?

Back

Water can only mix with polar molecules 

Front

Why is water considered a universal solvent?

Back

Dissolves most substances

Front

What is this an example of?
Options: How light paper clips are, bouyancy, surface tension, cohesion

Back

surface tension

Front

What is an important role of ice in aquatic habitats?

Back

Insulation

Front

Water's high boiling point is due to ___.

Back

hydrogen bonds

Front

Why can a water strider skate along the top of a pond?

Back

Hydrogen bonds result in water cohesion (surface tension).

Answer explanation

Cohesion is where water molecules stick together because of hydrogen bonding.

Front

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules. Options: adhesion, capillary action, cohesion, surface tension

Back

cohesion

Answer explanation

Cohesion is where water molecules stick together because of hydrogen bonding.

Front

Why is water polar?

Back

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.

Answer explanation

Front

Why does ice float on liquid water?

Back

As water freezes, it expands and its density decreases.

Answer explanation

During freezing there is not enough energy to break the stable hydrogen bonds, therefore they freeze in place making the ice slightly less dense that liquid water.