Sam conducts an experiment at STP. He has 21 different gases in a cylinder and each exerts the same partial pressure. What is the partial pressure exerted by each of the gases? (in two significant figures)

Which best explains why an iceberg floats?

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 apex! a liquid heated beyond a certain temperature becomes