Ammonium sulfate is used as a fertilizer to supply nitrogen to crops. write the equation for the disassociation of this compound when it dissolves in water and include states in your answer.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

What happens to isotopes that are unstable?

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?