What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6?

What is the solubility of substance?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

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?