# Question #fee47

##### 2 Answers

You balance an equation with parentheses the same way as with other equations.

You must remember to multiply the subscripts of atoms inside the parentheses by the subscripts outside the parentheses.

#### Explanation:

For example, balance the equation:

The standard method is to **balance by inspection**:

- First balance all atoms other than
#"O"# and#"H"# . - Then balance
#"O"# . - Then balance
#"H"# .

Start with the most complicated formula. Here, it is

We have

We have

Now we have

We have

Now we want to balance

The balanced equation is:

We **balance by inspection**, but we treat each group inside parentheses *as if* it were a single atom.

This is sometimes called the "**EASY**" way.

#### Explanation:

For example, balance the equation:

The groups inside parentheses behave as a unit, so we treat the

Then the equation becomes

We begin with

We have

We have

All atoms and groups are now balanced.

The balanced equation is:

Now all we have to do is re-insert the original groups represented by