Properties of Water

Front

What word describes when water is attracted to other substances?

Back

adhesion

Front

What two elements make up water? Options: Helium and oxygen, Hydrogen and oxygen, helium and carbon, oxygen and carbon

Back

Hydrogen and oxygen

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

Water is a universal solvent because it...

Back

Dissolves most substances

Front

Which of the following is LEAST likely to dissolve in water? nonpolar fats and oils, polar sugar molecules, salt made of a positive sodium ion and a negative chloride ion, all of the substances will dissolve easily in water

Back

nonpolar fats and oils

Front

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

Back

Water has a high heat capacity.

Front

What is the best explanation for why small insects can walk across the surface of calm water?

Back

The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together.

Front

The tightness across the surface of water that enables paper clips to float is ____________.

Back

surface tension

Front

Which statement explains why water molecules stick together? Options: both sides are negative, one side has a positive charge and the other side has a negative charge, one side has a negative charge and the other side has a neutral charge, both sides are positive

Back

one side has a positive charge and the other side has a negative charge