Properties of Water

Front

What allows water to form hydrogen bonds?

Back

The slightly positive hydrogen atoms of one water molecule are attracted to the slightly negative oxygen atoms of another water molecule.

Front

What type of bond must be broken for water molecules to vaporize?

Back

Hydrogen bonds.

Front

Why does ice float on water?

Back

As water freezes, it expands and its density decreases.

Front

What property of water helps regulate body temperature?

Back

Water has a high heat capacity.

Front

Why do hydrogen bonds cause ice to float?

Back

Hydrogen bonds stabilize and keep the molecules of ice farther apart than the water molecules of liquid water.

Front

What is the molecular structure of water?

Back

Water (H2O) consists of two hydrogen atoms covalently bonded to one oxygen atom.

Front

What is cohesion in relation to water?

Back

Cohesion is the attraction between water molecules due to hydrogen bonding.

Front

What is adhesion in relation to water?

Back

Adhesion is the attraction between water molecules and other substances.

Front

How does water's high heat capacity benefit living organisms?

Back

It helps maintain stable temperatures in organisms and environments.

Front

What is the significance of water being a polar molecule?

Back

Its polarity allows it to dissolve many substances, making it a good solvent.