Calculate the answer. express it in scientific notation and make sure it has the correct number of significant figures. (2.45 x 1013) x (4.00 x 1012) =

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

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