Problem: Write the formula for copper(II) sulfate pentahydrate.a. Cu2SO3•H5b. (CuSO4)5c. CuS•5H2Od. Cu2S•H2Oe. CuSO4•5H2O

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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.

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Problem Details

Write the formula for copper(II) sulfate pentahydrate.

a. Cu2SO3•H5

b. (CuSO4)5

c. CuS•5H2O

d. Cu2S•H2O

e. CuSO4•5H2O