I need help on this plz

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?

Stage in which a typical star has completely stopped fusion

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a