Given the balanced equation: Na2O + H2O -> NaOH if you start with 8 moles of moles Na2O, how many moles of NaOH can be produced?

What is the polyatamic ion of borate

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 does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy