What is the result of fusion reactions? (а) a new element or different atom formed from the original two (b) two atoms chemically bonded (c) two new or different atoms formed from the original (d) pure energy only

Why is nh3 classified as a polar molecule

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?

In which reaction is precipitation occurring?