Write the solvation equation for dissolving in water for iodine?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.