Nitrogen forms more oxides than any other element. the percents by mass of n in three different nitrogen oxides are (i) 46.69%; (ii) 36.85%; (iii) 25.94%. for each compound, determine (a) the simplest whole-number ratio of n to o, and (b) the number of grams of oxygen per 1.00 g of nitrogen.

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.