Oxidation Numbers and Compounds

The video tutorial explains how to determine the oxidation numbers for V2O3. It starts by identifying the compound as neutral, meaning the sum of oxidation numbers equals zero. The oxidation number for oxygen is known to be -2, while the oxidation number for vanadium is unknown and represented as x. An equation is set up and solved to find that each vanadium atom in V2O3 has an oxidation number of +3. The tutorial concludes with a summary of the findings.

What is the overall charge of the V2O3 compound?

• Positive

• Negative

• Neutral

• Depends on the environment

What is the typical oxidation number assigned to oxygen in compounds?

• +1

• -2

• 0

• -1

How many oxygen atoms are present in V2O3?

• 2

• 1

• 3

• 4

What is the oxidation number of vanadium in V2O3?

• +4

• +3

• +2

• +1

What is the sum of oxidation numbers in a neutral compound?

• 0

• +1

• +2

• -1

In the equation 2x + 3(-2) = 0, what does 'x' represent?

• The total charge of the compound

• The number of oxygen atoms

• The oxidation number of oxygen

• The oxidation number of vanadium