Front

What is water? Options: An atom, A molecule composed of 2 parts Oxygen and one part Hydrogen, A molecular compound composed of 2 parts Hydrogen and one part Oxygen, A pure substance composed of 2 parts Hydrogen and one part Oxygen

Back

A molecular compound composed of 2 parts Hydrogen and one part Oxygen

Front

Why does water ice have a lower density than liquid water?

Back

Because the molecules expand in volume as water freezes into a crystal

Front

Adhesion

Back

Water's ability to stick to other substances

Front

What is cohesion?

Back

Water's ability to stick to itself

Front

What is surface tension?

Back

The strength of the cohesion of all the water molecules combined

Front

What word describes when water is attracted to other substances? Options: cohesion, adhesion, capillary action, surface tension

Back

adhesion

Front

Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called

Back

Hydrogen bonds

Front

Why does ice float?

Back

As water freezes, it expands and its density decreases.

Front

Which end of the water molecule has a slightly positive charge? Options: the oxygen end, the hydrogen end, both ends are slightly positive, neither end is positive

Back

the hydrogen end

Front

Why is water considered a universal solvent?

Back

Dissolves most substances