The table below describes the properties of several stars. Radius Betelgeusered3,500 K6.5 x 108 km Sunwhite-yellow5,778 K7.0 x 105 km Sirius Ablue9,940 K1.2 x 106 km Polluxorange4,865 K5.5 x 106 km Which of the stars listed above is most likely considered a supergiant? A. Pollux B. Sun C. Sirius A D. Betelgeuse

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering