The brown gas NO2 and the colorless gas N2O4 exist in equilibrium: 2NO2 = N2O4 In an experiment, 0.625 mole of N2O4 was introduced into a vessel of 5.0 L and was allowed to decompose until it reached equilibrium with NO2. The concentration of N2O4 at equilibrium was 0.075 M. Calculate Kc for the reaction. (Hint: remember the ICE procedure? initial, change, and equilibrium)

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant