Properties of Water

In the drawing space, draw 10 water molecules to create a cluster. Be sure to indicate the hydrogen bonds that link the water molecules.

Some molecules that are covalently bonded do not have a difference in charge across the molecule. These molecules are referred to as nonpolar. What arrangement of electrons would result in a nonpolar molecule?

Some examples of nonpolar molecules include fats, oils, and waxes. How do these substances interact with water?

What prediction would you make about why oil and water interact in the way described above?

How many oxygen atoms are in a molecule of water?

What holds the hydrogen atoms to the oxygen atom?

The shading around the molecule represents the relative density of electrons shared by the atoms.

What does this indicate about the density of electrons around the oxygen atom as compared to the density of electrons around the hydrogen atoms?

Where is the majority of negative charge on the water molecule?

The small, unshaded circles in Model 2.

The larger gray shaded circles in Model 2.

What do the solid lines between the small and large circles represent?

According to Model 2, what is represented by the dotted lines?

Using your answer from #4, What kind of charge would the oxygen atom have compared to the hydrogen atoms?

Using your answer from #4, What kind of charge would the hydrogen atom have compared to the oxygen atoms?

The hydrogen end of a water molecule is attracted to the ______ end in another water molecule.

Which statement describes the cause of the attractions between molecules of water?