Question

Balance the following chemical equation:
a) $FeS+HCl$ → <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ${FeCl}_2$ + <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $H_{2}S$



<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->

Answer 1

The skeletal equation is:

FeS + HCl → <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ${FeCl}_2$ + <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $H_2$S

• Count the number of atoms of each element.

• To equalize H and Cl multiply HCl by 2

FeS + HCl → <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ${FeCl}_2$ + <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> $H_2$S

Hence, the equation is balanced.