If another electron was added to the same orbital, what would be the set of four quantum numbers for this electron

Asample of neon occupies a volume of 375 ml at stp. what will be the volume of neon if the pressure is reduced to 90.0 kpa? a. 422 ml b. 422 l c. 333 ml d. 333 l

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

In which phase(s) do the molecules take the shape of the container?