The number of moles of molecules in a 12.0-gram sample of Cl2 is equal too?

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?

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

In which situation can a mixture always be called a solution