# How do you balance #Na + H_2O -> NaOH + H_2#?

##### 1 Answer

#### Explanation:

First, let's rewrite

Now we can see how many of each element/polyatomic ion we have on each side of the equation.

Left:

Na - 1

H - 1

OH - 1

Right:

Na - 1

OH -1

H -2

Looking at what we have, there is an unequal amount of hydrogen on the left side and the right side. We have only 1 on the left and 2 on the right. Let's double everything on the left. Now we get:

Since we have 2 of everything on the left, we should make sure that the right side is accounted for. As mentioned in our original count, the

Changing back