Answer ! what does base stand for in science

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

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?