Which are advantages of using a reflecting telescope instead of a refracting telescope? check all that apply. reflecting telescopes are less expensive. reflecting telescopes produce clearer images. reflecting telescopes require only concave lenses. reflecting telescopes can gather light from objects farther in space. reflecting telescopes usually take up less space.

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.