Ionic compound formula of magnesium nitrate

If a || b and e || f, what is the value of y ?

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?

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc