Which of these is a true statement? A. The moon's phases change over the course of one month.
B. The moon has different phases during the spring and the autumn.
C. The moon rotates so that the entire moon can be seen from Earth.
D. The moon's phases occur because of Earth's revolution around the sun.

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.