Answer:
<h2> 2 HCl(aq) + FeS(s) --->

</h2>
Explanation:
Here translate the words into the atomic symbol:
HCl(aq) + FeS(s) →FeCl2(aq) + H2S(g)
calculation;
Hydrogens (H); 1 on left, 2 on right
Chloride (Cl); 1 on left, 2 on right
Iron (Fe) ; 1 on left, 1 on right
Sulfur (s); 1 on left, 1 on right
Balancing ; So, need 1 more Hydrogen on the left and 1 more Chloride on the left. The easiest way to do this is to put a 2 in front of HCl.
<em>2 HCl(aq) + FeS(s) ---> </em>
Now there are two hydrogens, two chlorides, one iron, and one sulfur on the left and the same on the right.