3. Classify each of the following as a physical or a chemical property
a. Iron and oxygen form rust.
b. Iron is more dense than aluminum.
C. Magnesium burns brightly when ignited.
d. Oil and water do not mix.
e Mercury melts at -39°C.

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

If e is the symbol for an element, which two of the following symbols represent isotopes of the same element? 1. e2. e3. ea.1 and 2c.1 and 4b.3 and 4d.2 and 3

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.