Determine how many mm of hg are equal to 5.3 atm of pressure

Why is nh3 classified as a polar molecule

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.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %