The first step in balancing a chemical equation is to write the correct formulas for all reactants and products.

Here's why this is crucial:

* Accuracy is Key: If the formulas are incorrect, the entire balancing process is built on a faulty foundation.

* Understanding the Reaction: The correct formulas reveal the chemical species involved and how they interact.

* Setting Up the Framework: Once you have the correct formulas, you can start counting atoms on each side of the equation, which is the basis for balancing.

Example:

Let's say you want to balance the reaction of hydrogen gas and oxygen gas to form water.

1. Write the correct formulas:

* Hydrogen gas: H₂

* Oxygen gas: O₂

* Water: H₂O

2. Now you have the starting point:

H₂ + O₂ → H₂O

Only then can you proceed with the balancing process by adjusting the coefficients in front of each formula.