Copper has a density of 8.91 g/cmº. A coil of pure copper wire has a mass of 25.0 g. What is the volume in cm of this copper sample? Report your answer to three significant digits!
cm3

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.

The clouds are grey and ground is wet. a quantitative b qualitative

2. how is heavy water different from normal water