If you have 3.4 grams of carbon how many moles of carbon would you have

What happens to isotopes that are unstable?

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

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?