Question 1: A rectangular block of copper metal weighs 1896 g. The dimensions of the
block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of
copper in pounds per liter?

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.