2. The mass of your beaker of vinegar is 205.789, the mass of your baking soda is 2009. What is the total mass of the chemicals together? How do you know?

Which type of reaction always has an element and a compound as reactants

What is the number of atoms in 3.54 mol s

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.