Chemical Properties of Iron and Oxygen

The video tutorial explains the formula for iron metal, represented as Fe, and its solid state due to metallic bonds. It introduces a word equation involving iron metal and oxygen gas, resulting in iron(III) oxide. The tutorial breaks down the chemical equation, highlighting the diatomic nature of oxygen and the solid state of iron(III) oxide. The video concludes with a summary of the iron metal formula.

What is the chemical symbol for iron metal?

• Ir

• In

• Fe

• I

What type of bonds hold iron atoms together in iron metal?

• Hydrogen bonds

• Covalent bonds

• Metallic bonds

• Ionic bonds

How is the state of iron metal represented in its chemical formula?

• Fe (s)

• Fe (aq)

• Fe (g)

• Fe (l)

What is the formula for oxygen gas?

• O

• O2

• O3

• O4

In a word equation, what does iron metal react with to form iron(III) oxide?

• Carbon dioxide

• Hydrogen gas

• Oxygen gas

• Nitrogen gas

What is the chemical formula for iron(III) oxide?

• FeO

• Fe2O3

• Fe3O4

• FeO2

What does the 's' in Fe (s) indicate about iron metal?

• It is aqueous

• It is a solid

• It is a liquid

• It is a gas

Which of the following is a diatomic molecule?

• CO2

• Fe

• H2O

• O2