The image in the picture is a comet. what characteristic best identifies it as a comet?
a) comets are streaks of light.
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b) comets are larger than asteroids.
c) comets enter the earth's atmosphere.
d) comets develop a fuzzy, cloud-like shell called a coma, as well as a tail.

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.