Which of the following has the smallest mass? Convert them all the grams first. O A. 4.0 x 10-6 g
O B. 4.0 x 109 ng
O C.4.0 x 10-2 micrograms
O D.4.0 x 10-3 kg
O E. 4.0 x 10-6 mg

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.