Respuesta :

Answer: In copper (II) sulfate pentahydrate, only 1 sulfur atom is present.

Explanation:

The chemical formula of the copper (II) sulfate pentahydrate is [tex]CuSO_4.5H_2O[/tex]

In the given chemical formula:

Number of copper atoms = 1

Number of sulfur atoms = 1

Number of oxygen atoms = 9

Number of hydrogen atoms = 10

Hence, in copper (II) sulfate pentahydrate, only 1 sulfur atom is present.