Which of the following are falsifiable?
hypotheses
laws
theories

This element exists in adundance in the sun.explain how you would go about capturing sunlight.would this captured sunlight contain any of the element?

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules