The balanced equation for the reaction of copper sulfide (CuS) with oxygen (O₂) to produce copper oxide (CuO) and sulfur dioxide (SO₂) is:

2 CuS + 3 O₂ → 2 CuO + 2 SO₂

Here's how the equation is balanced:

* Copper (Cu): There are 2 Cu atoms on both sides of the equation.

* Sulfur (S): There are 2 S atoms on both sides of the equation.

* Oxygen (O): There are 6 O atoms on both sides of the equation.