Which particulate representation could be used to describe the species present in the reaction vessel after the process has gone to completion

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

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.

How many grams of phosphorus are contained in 5.09 moles of phosphorus?