The density of glycerin is 1.26 . How many is this? Use the conversion rates of and . Express your answer to the correct number of significant figures.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

When a septic tank backs up a goes in to clean it out

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