Ohanna is studying what happens to the energy as a ball rolls down a ramp. what is she studying? check all that apply.
gravitational potential energy
electrical energy
kinetic energy
mechanical energy
elastic potential energy

What is the molar mass of a gas that has density of 2.054 g/l

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

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.