Answer:- [tex]4.0*10^2^0[/tex] molecules.
Solution:- The given balanced equation is:
[tex]N_2O_4(g)\rightarrow 2NO_2(g)[/tex]
From the balanced equation, 1 molecule of the reactant gives two molecules of the product. So, the number of molecules of the products formed will be two times the molecules of the reactant.
[tex]2.0*10^2^0moleculesN_2O_4(\frac{2moleculesNO_2}{1moleculeN_2O_4})[/tex]
= [tex]4.0*10^2^0moleculesNO_2[/tex]
So, the last choice is the correct one.
