Explain how the mass of a Barium Hydroxide can be used to determine the number of moles of ammonia gas (NH3)
produced in this reaction.

Aforce of attraction/repulsion due to the spin of electrons what is this force?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?