Two 500 mL flask contain gas at STP. Flask a contains carbon monoxide, and flask contains carbon dioxide. Choose the true statement.

Which substance absorbs 58.16 kj of energy when 3.11 mol vaporizes? a)ch4 b)h2s c)co2 d)nacl

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?