What will I benefit or what will I gain if I know the absorbance and emission of any substance?

Which is a character of nuclear fusion but not nuclear fission

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done