When methane reacts with oxygen, the products are carbon dioxide and water. How many grams of carbon dioxide are formed if 30 g of methane react completely with 75 g of oxygen to form 50 g of water? Show your work

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.