Naming & Writing Formulas for Ionic Compounds REVIEW

Which is true of ionic compounds?

• They are electrically neutral when dissolved in a solution

• They are made by sharing electrons

• They are made of metals and nonmetals

• They are good conductors as solids

Which set of atoms will form an ionic compound?

• One calcium and one oxygen atom

• Two hydrogen and one oxygen atom

• One oxygen atom with one oxygen atom

• Two phosphorous atoms with five oxygen atoms

What is the formula for magnesium phosphide?

• Mg₃P₂
• Mg₂P₃
• Mg₂PO₃
• Mg₃(PO₃)₂

The chemical formula for an ionic compound of potassium and oxygen is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Which of the following is the correct name for CuCl₂?

• copper dichloride

• copper (II) chloride

• copper bichlorinate

• copper (I) chloride

Which of the following is the correct formula for copper (I) sulfide?

• Cu₂S

• CuS

• CuS₂

• Cu₂S₂

The formula for Nickel (II) Oxide is...

• Ni₂O₂

• NiO₂

• NiO

• Ni₂O

Answer explanation

Remember: Ni₂O₂ is not correct because your answer should be in its most reduced form: NiO.

We would name FeF₂...

• Iron Fluoride

• Iron (I) Fluoride

• Iron (II) Fluorine

• Iron (II) Fluoride

What is the correct formula for sodium sulfate?

• NaSO₄
• Na₂S
• Na₂SO₄
• NaS