Which of the following is milk an example of?
solution.
homogenous mixture.
colloid.
compound.

Drive down any three characteristic of modern periodic table

Nonmetal halogen family atmoic mass 35

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?