Balance the equation and write the reaction-quotient expression, qc. u(s) + f2(g) > uf6(g)

The equation presented above is that of uranium reacting with fluorine forming uranium fluoride. 

The chemical reaction can be balanced by carefully studying the equation and balancing the number of atoms of each of the element in both sides of the chemical reaction. That is,
 
                           U(s) + 3F₂(g) --> UF₆(g)