How many moles of Fe2O3 are produced if 02 is in excess
reacting with 0.48 moles of Fe?

What is the maximum number of electrons that an atomic orbital can contain?

Connect the whole numbers on the periodic table to indicate what they represent?

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?