Suppose a 9 bp fragment of a supercoiled DNA changes from the B conformation to the Z conformation. Calculate the approximate change in linking number, writhing number and twist.

What are the constituent metals of stainless steel?

Which statement best describes what happens when molecular compounds melt

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.