Which type of information is best represented by a chart?

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?

Which substance has non polar covalent bonds

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver