A scientist measures the length of a piece of metal that has a melting point of 400*C. At 20*C, the metal is 2.3 cm long. The scientist heats the metal to 125*C. Which of the following is the most likely length of the metal at 125*C? * -2.1 cm
-2.2 cm
-2.3 cm
-2.4 cm

Which of the following describes a situation where competition between producers exists

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

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.