The decomposition of ozone in the stratosphere can occur by the following two-step mechanism:Which species is a catalyst in this mechanism?

At high temperatures, carbon reacts with O2 to produce CO as follows:                             C(s) + O2(g)  —->  2CO(g). When 0.350 mol of O2 and excess carbon were placed in a 5.00-L container and heated, the equilibrium concentration of CO was found to be 0.060 M. What is the equilibrium constant, Kc, for this reaction?

A mixture of carbon monoxide, hydrogen, and methanol is at equilibrium. The balanced chemical equation is: CO(g) + 2 H2(g) ⇌ CH3OH(g). At 250°C, the mixture contains 0.0960 M CO, 0.191 M H2, and 0.150 M CH3OH. What is the value for Kc?

The oxidation of sulfur dioxide by oxygen to sulfur trioxide has been implicated as an important step in the formation of acid rain: 2 SO2(g) + O2(g) ⇌ 2 SO3(g). If the equilibrium partial pressures of SO2, O2, and SO3 are 0.564 atm, 0.102 atm, and 0.333 atm respectively at 1000 K, what is Kp at that temperature?

Kp = 1.5 × 103 at 400°C for the reaction 2 NH3(g) ⇌ N2(g) + 3 H2(g). What is the value of Kp for the reaction: 2 N2(g) + 6 H2(g) ⇌ 4 NH3(g)?

The oxidation of sulfur dioxide by oxygen to sulfur trioxide has been implicated as an important step in the formation of acid rain: 2 SO2(g) + O2(g) ⇌ 2 SO3(g). If the equilibrium partial pressures of SO2, O2, and SO3 are 0.564 atm, 0.102 atm, and 0.333 atm respectively at 1000 K, what is Kp at that temperature?

If Kc = 7.04 × 10-2 for the reaction: 2 HBr(g) ⇌ H2(g) + Br2(g), what is the value of Kc for the reaction:  ?

For the following problem, use a separate sheet of paper to solve the problem. Select your answer from the choices given and then upload your solution at the following link: INSERT LINK TO YOUR CANVAS ASSIGNMENT HERE Your work must be shown for full credit.  The answer alone is only worth 1 point.    A quantity of liquid methanol, CH3OH, is introduced into a rigid 3.00-L vessel, the vessel is sealed, and the temperature is raised to 500K.  At this temperature, the methanol vaporizes and decomposes according to the reaction:         CH3OH(g) ↔  CO(g) + 2 H2(g),             Kc= 6.90 x 10–2 If the concentration of H2 in the equilibrium mixture is 0.426M, what mass of methanol was initially introduced into the vessel?       

The _____________ is the long central aisle of a church.

Chlorine reacts with chloroform according to the reaction given below: Cl2 + CHCl3 → CCl4 + HCl When the initial concentration of CHCl3 is doubled the reaction rate increases by a factor of 2. What is the order of the reaction with respect to CHCl3 ?