Reaction was brought about between ferric oxide and Aluminium

Summarize possible ways in which phases of matter could combine to form a solution.

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?

8. what happens to matter during a chemical reaction