Which half reaction occurs at the cathode in this cell? o 2003-> O2 + 2002 +4e-
O O2 + 200, +4e-
> 2003
2H2 + 2003- -
2H2O + 200, +4e
2H20 + 200, +4e--> 2H2 + 2003-

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant

What natural processes produce large quantities of co2