Barium Oxide and Ionic Compounds

The video tutorial explains how to write the formula for barium oxide by identifying barium and oxygen from the periodic table, noting their ionic charges, and balancing these charges to form a neutral compound. The final formula for barium oxide is presented as BaO, with a brief clean-up of the charges. The tutorial concludes with a thank you message from Dr. B.

What type of compound is formed when a metal and a non-metal combine?

• Organic compound

• Metallic compound

• Ionic compound

• Covalent compound

What is the ionic charge of barium in barium oxide?

• 1+

• 2+

• 1-

• 2-

Why must the charges in barium oxide add up to zero?

• To make it a metallic compound

• To increase its reactivity

• To ensure it is a neutral molecule

• To make it a covalent compound

What is the correct formula for barium oxide?

• BO

• Ba2O

• BaO2

• BaO

What happens to the charges in the final formula of barium oxide?

• They are ignored

• They are doubled

• They are balanced and removed

• They are added to the formula