The balanced chemical equation for the decomposition of hydrogen peroxide (H₂O₂) into water (H₂O) and oxygen gas (O₂) is:

2 H₂O₂ → 2 H₂O + O₂

Here's how the equation is balanced:

* Hydrogen (H): There are 4 hydrogen atoms on both sides of the equation.

* Oxygen (O): There are 4 oxygen atoms on both sides of the equation.

This balanced equation tells us that:

* 2 molecules of hydrogen peroxide decompose to form

* 2 molecules of water and

* 1 molecule of oxygen gas.