How many neutrons are in neon?

How manyatoms of mercury are in 1.4214e+1 ml sample

The clouds are grey and ground is wet. a quantitative b qualitative

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?