Question

Write the balanced chemical equations for the following word equations:

$\left(a\right).\text{Iron}+\text{Chlorine}\to \text{Iron}\left(III\right)\text{chloride}$

Answer 1

The skeletal equation is:
$Fe+C{l}_2\to FeC{l}_3$

Count the number of atoms of each element on either side of the reaction

• Number of atoms on reactant side:

$Fe=1,Cl=2$

• Number of atoms on the product side:

$Fe=1,Cl=3$

• To equalize $Cl$, multiply $C{l}_2$ by $3$ and $FeC{l}_3$ by $2$.

$Fe+3C{l}_2\to 2FeC{l}_3$

• To equalize $Fe$, multiply $Fe$ by $2$.

$2Fe+3C{l}_2\to 2FeC{l}_3$

Therefore, the balanced chemical equation for the reaction is:
$2Fe+3C{l}_2\to 2FeC{l}_3$