Asample of ne pas is observed to effuse through a pour own barrier in 8.61 minutes. under the same conditions, the same number of moles of an unknown as requires 13.0 minutes to effuse through the same bam the molar mass of the unknown as mol

Why is silver chloride is an ionic compound

Particles vibrate in a rigid structure and do not move relative to their neighbors.

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.