Table of contents

3. Chemical Reactions

Naming Ionic Compounds

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Multiple Choice

Which metallic ion is present in copper(II) chloride?

Cl^{-}

Cu^{2+}

Cl^{2+}

Cu^{+}

Verified step by step guidance

Identify the chemical formula given: copper(II) chloride is written as CuCl\_2.

Understand the Roman numeral in the name: the (II) in copper(II) indicates the oxidation state of the copper ion, which is +2.

Recall that chloride ions (Cl) typically have a charge of -1 each.

Since there are two chloride ions, the total negative charge is 2 \times (-1) = -2.

To balance the charges in the compound, the copper ion must have a charge of +2, so the metallic ion present is Cu^{2+}.

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