How many moles of Aluminum Oxide (Al2O3) are produced when 10.63 moles of Al completely react?
4 Al + 3 O2 --> 2 Al2O3

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset

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?