What is the contour interval on this map

Explain how carbon monoxide can cause death

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

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?