# How would you balance this chemical equation: #2Sb + I_2 -> 2SbI_3#?

##### 2 Answers

#### Explanation:

There are six Iodines in the products so there must be six iodines in the reactants.

Iodine comes as diatomic gas molecule. ( as well as a grey crystal).

You follow a systematic procedure to balance the equation.

#### Explanation:

Start with the unbalanced equation:

A method that often works is to balance everything other than

Another useful procedure is to start with what looks like the most complicated formula.

The most complicated formula looks like

**Balance #"Sb"#:**

There are

**Balance #"I"#:**

We have fixed

Every formula now has a fixed coefficient. We should have a balanced equation.

Let’s check:

All atoms balance. The balanced equation is