The video tutorial explains how to determine the oxidation number of carbon in difluoromethane (CH2F2). It begins by noting that CH2F2 is a neutral compound, meaning the sum of its oxidation numbers is zero. Hydrogen, when bonded to a non-metal like carbon, has an oxidation number of +1, while fluorine is always -1. By setting up an equation with these values, the oxidation number of carbon is calculated to be zero. The tutorial concludes with a summary of the findings.

What is the charge of a neutral compound like CH2F2?

• Depends on the elements

• Positive

• Negative

• Zero

When hydrogen is bonded to a non-metal like carbon, what is its oxidation number?

• +1

• 0

• +2

• -1

What is the oxidation number of fluorine in compounds?

• +1

• +2

• -1

• 0

How do the oxidation numbers in a neutral compound like CH2F2 add up?

• They add up to a positive number

• They add up to a negative number

• They add up to zero

• They add up to the number of atoms

What is the oxidation state of carbon in CH2F2?

• -1

• +2

• +1

• 0

Which of the following equations represents the balance of oxidation numbers in CH2F2?

• x + 2 - 2 = 0

• x - 2 = 0

• x + 2 = 0

• x - 1 = 0