If a sample of copper with a density of 8.90 g/cm3 displaces 13.0 ml of water when placed in a beaker, what is its mass? a 1.46 g b. 0.685 g c. 116 g

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma