What is gallium charge? (positive or after it forms an ion?

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 compound contain an iron with a 3+ charge

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa