If you have 12 atoms of hydrogen before a chemical reaction, how many atoms of hydrogen will be present

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Draw metallic bonding if two copper

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.