Iron and chlorine produce iron tri-chloride(fecl3).what is the balance equation

Fe + 3Cl > FeCl3

Explanation:
The skeleton unbalanced equation is:
Fe + Cl > FeCl3
Now, we will balance the equation:
In the reactants, we have 1 mole of iron reacting with one mole of chlorine
In the products, we have 1 mole of iron and three moles of chlorine
Therefore, to balance this equation, we would simply multiply the number of chlorine moles in the reactants by 3. 
This will give:
Fe + 3Cl > FeCl3

Hope this helps :)