Balanced Equation:
Zn +
H2SO4
ZnSO4 + H2

In an oxidation-reduction reaction, oxidation is what happens when a reactant

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

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?