Fission is the splitting of an a) atom into protons and electrons b) atomic nucleus into neutrons and electrons c) atomic nucleus into two smaller parts

Compare and contrast physical changes with chemical changes.

Why does his teacher ask him to balance the equation by including the correct coefficient

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.