12. Inspiration for new types of synthetic materials often comes from observations of 13. The practical use of scientific knowledge, as in the development of new synthetic materials, is
an example of
in action.
14.
In the formation of synthetic materials, natural materials undergo chemical reactions wherein
their
rearrange and form new molecules.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as