A photon with energy 2.87 eV is absorbed by a hydrogen atom. (a) Find the minimum n for a hydrogen atom that can be ionized by such a photon. 3 Correct: Your answer is correct. (b) Find the speed of the electron released from the state in part (a) when it is far from the nucleus. km/s

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?