Here's why:

* Hydrogen (H): This is a single hydrogen atom.

* Sulfur (S): This is a single sulfur atom.

* Oxygen (O): This is four oxygen atoms.

* ⁻: This indicates a negative charge, meaning the ion has one extra electron.

Hydrogen sulfate is also known as bisulfate. It is the conjugate base of sulfuric acid (H₂SO₄).