We’re being asked to give the chemical formula of copper(II) sulfate pentahydrate.
The rules for naming polyatomic ionic compounds are as follows:
1. The metal keeps its name and is named and written first.
– For transition metals, we use Roman numerals to denote its charge.
2. Name the polyatomic ion as you would normally.
3. Hydrates → H2O, the prefix will determine the coefficient. Separated by a dot form the main molecule.
Write the formula for copper(II) sulfate pentahydrate.