Naming Compounds

1. If an atom becomes an ion with a charge of +2, what does that mean?

• It has 2 electrons to give

• It is looking to gain 2 electrons

• It is in Period 2

• It has an atomic number of 2

What is the name of the compound Cr₂O₃?

• Chromium trioxide

• Chromium (III) oxide

• Dichromium trioxide

• Dichromium oxide

What is the chemical formula for Potassium sulfide?

• KS

• KS₂

• K₂S₃

• K₂S

What is the chemical formula for Magnesium chloride?

• MgCl

• Mg₂Cl

• MgCl₂

• Mg(ClO₃)₂

Which group has a -3 oxidation number?

• Group 1

• Group 13

• Group 15

• Group 17

What is the chemical formula for Copper (I) sulfate?

• Cu(SO₃)

• Cu(SO₄)

• Cu₂(SO₃)

• Cu₂(SO₄)

Which group has a -1 oxidation number?

• Group 1

• Group 13

• Group 15

• Group 17

What does Iron (III) mean?

• Fe⁺¹

• Fe⁺³

• Fe^-3

• Fe^-1

What is the name of the compound Li(OH)?

• Lithium hydrogen oxide

• Lithium hydroxide

• Lithium hydride

• Lithium oxide hydride

What is the formula for Sodium oxide?

• NaO

• Na₂O

• Na₂O₂

• NaO₂