Using the following balanced equation: 3CaCl2 + 2Na3PO4 --> Ca3(PO4)2 + 6NaCl

What is the mole ratio between sodium chloride, NaCl and calcium phosphate, Ca3(PO4)2?

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.