What happens to a chemical system at equilibrium when that equilibrium is disturbed?

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?

How to convert a density of 0.791g/cm3 to lb/ft3

What conclusion can you draw from this experiment about the components of the black ink?