Which statement is always true of the cathode in an electrochemical cell? Reduction occurs here. It is considered the "negative" electrode. Negative ions flow toward the cathode. Metal is plated out here. It is considered the "positive" electrode.

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

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.

What is the formula of the ionic compound composed of calcium cations and chloride anions