Ni + Aubr3 --> NiBr2 + Au what is it balanced

Why did southern business leaders want to increase the number of slaves

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 the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2