# What is the whole number that appears before a formula in an equation?

##### 1 Answer

Mar 2, 2017

Do you mean the

#### Explanation:

Let's take hydrocarbon combustion, that of pentane, which we could represent as:

The numbers:

For even numbered alkanes, we could use non-integral stoichiometric coefficients:

Is this equation stoichiometrically balanced? Don't trust my arithmetic!