# How would you balance Na(s) + Cl2 → NaCl(s)?

Oct 18, 2015

The balanced equation is $\text{2Na(s)"+"Cl"_2("g")}$$\rightarrow$$\text{2NaCl(s)}$.

#### Explanation:

How to Balance the Equation $\text{Na(s)"+"Cl"_2("g")}$$\rightarrow$$\text{NaCl}$.

Since there are two chlorine atoms on the left side, there needs to be two chlorine atoms on the right side. So I put a coefficient of two in front of the formula $\text{NaCl}$.

$\text{Na(s)"+"Cl"_2("g")}$$\rightarrow$$\text{2NaCl}$

Now there are two sodium and two chlorine atoms on the right side. However, the left side has only one sodium atom. So I put a coefficient of two in front of the formula $\text{Na}$.

$\text{2Na(s)"+"Cl"_2("g")}$$\rightarrow$$\text{2NaCl(s)}$

Now there are two sodium and two chlorine atoms on both sides of the equation and it is balanced.

Notice that I only changed the amount of each substance by changing the coefficients. I did not change the formulas.