Eat at joe's! did you know that this neon sign is experiencing a change of state? when a neon sign lights up, like the one you see here, something is happening to the neon atoms inside the tube. how is this colorful sign related to kinetic energy and phase change?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.