Answer:
[tex]MgCl_2+2NaF\operatorname{\rightarrow}MgF_2+2NaCl.[/tex]Explanation:
You can see that we have 1 Mg on both sides, 1 Na on both sides, 2 Cl on the reactants but 1 Cl on te products, and 1 F on the reactants but 2 F on the products.
This indicates that the chemical equation is unbalanced, so we can balance this equation by doingthe trial and error method,
If we put '2' moles beside NaF, we will have F balanced on both sides:
[tex]MgCl_2+2NaF\rightarrow MgF_2+NaCl.[/tex]But Na would be unbalanced because we have 2 Na on the left side and 1 Na on the right side, so if we put '2' moles beside NaCl, we will balance for Na and Cl on both sides and we will obtain the balanced chemical equation:
[tex]MgCl_2+2NaF\operatorname{\rightarrow}MgF_2+2NaCl.[/tex]