Potassium chlorate decomposes according to the following chemical equation: 2kclo3 > 2kcl + 3o2, if you start with 458 g of kclo3, what mass (g) of o2 will be produced? a. 83.71 l o2 b. 179.39 l o2 c. 687 l o2 d. 67.2 l o2

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.

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h

Helium decays to form lithium. which equation correctly describes this decay?