25 POINTS!
Which of the following are two examples of ways that objects can have potential energy?

A boulder that is falling after being pushed off a cliff.

A Iron nail as it move towards a magnet.

A pebble in a slingshot before it has been shot.

A pebble traveling as it is shot with a slingshot.

When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

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.