Macromolecules and Water Properties

Front

Why do water molecules stick together?

Back

One side has a positive charge and the other side has a negative charge.

Front

When a molecule has an opposite electrical charge on each end, it is known as what?

Back

polar molecule

Front

The ability of water molecules to stick to each other, creating surface tension is called:

Back

Cohesion

Front

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

Back

surface tension

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

Which of the following is LEAST likely to dissolve in water? Options: 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

Why is water considered a universal solvent?

Back

Dissolves most substances

Front

Which end of the water molecule has a slightly positive charge?

Back

the hydrogen end

Front

Why does ice float?

Back

As water freezes, it expands and its density decreases.

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