4.05 Writing Ionic Formulas Extra Practice

Write the formula for strontium (Sr) fluoride (F)

• SrF₂
• SrF
• Sr₂F
• Sr₂F₄

What is the formula for magnesium (Mg) chloride (Cl)?

• MgCl
• Mg₂Cl
• MgCl₂
• Mg(ClO₃)₂

The chemical formula for an ionic compound of potassium (K) and oxygen (O) is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

The chemical formula for an ionic compound of aluminum (Al) and Oxygen (O) is

• AlO.
• Al₂O₃.
• Al₂O₂.
• AlO₂.

The chemical formula for an ionic compound of potassium (K) and nitrogen (N) is

• K₃N.
• KN₃.
• K₂N₂.
• KN₂.