Aluminum Oxide Compounds and Properties

The video tutorial explains how to write the formula for aluminum oxide. It begins by identifying aluminum and oxygen as components of the compound, noting that aluminum is a metal and oxygen is a non-metal, forming an ionic compound. The tutorial introduces the crisscross method to balance charges, resulting in the formula Al2O3. The video concludes by confirming that the compound is neutral, with all charges adding up to zero.

What are the two elements that make up aluminum oxide?

• Aluminum and Nitrogen

• Aluminum and Oxygen

• Oxygen and Hydrogen

• Aluminum and Carbon

What type of compound is formed between aluminum and oxygen?

• Covalent compound

• Ionic compound

• Metallic compound

• Molecular compound

What is the charge of aluminum in the aluminum oxide compound?

• 2+

• 4+

• 3+

• 1+

Which method is used to determine the formula for aluminum oxide?

• Balancing method

• Crisscross method

• Substitution method

• Addition method

What is the chemical formula for aluminum oxide?

• Al2O3

• AlO

• Al3O2

• AlO2