Names:
* H: Hydrogen
* S: Sulfur
* O: Oxygen
Atoms:
* H: There are 2 H₂ molecules, and each molecule has 2 hydrogen atoms, so there are 2 * 2 = 4 hydrogen atoms.
* S: There are 2 SO₄ molecules, and each molecule has 1 sulfur atom, so there are 2 * 1 = 2 sulfur atoms.
* O: There are 2 SO₄ molecules, and each molecule has 4 oxygen atoms, so there are 2 * 4 = 8 oxygen atoms.
In total, there are 4 + 2 + 8 = 14 atoms in 2H₂SO₄.