More free points since bored hope you guys doing good

Which mathematical relationship should you us to convert moles of a substance into grams

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

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space