Sodium and nitrogen combine to form sodium nitride. 6Na(s)+N2(g)→2Na3N(s)

If 90.0 g of sodium is mixed with 40.0 g of nitrogen gas, what mass of sodium nitride forms?

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

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 subscript for oxygen in its molecular formula