Oxidation States in Amide Ion

The video tutorial explains how to determine the oxidation numbers for elements in the NH2- ion, known as the amide ion. It begins by discussing the significance of the ion's negative charge and how oxidation numbers must sum to this charge. The tutorial then covers the oxidation states of hydrogen and nitrogen, using algebra to solve for nitrogen's oxidation number. Finally, it verifies the calculations to ensure they sum to the ion's charge.

What is the total oxidation number for all elements in the amide ion, NH2-?

• -1

• 0

• -2

• +1

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

• -1

• 0

• +1

• +2

In the context of NH2-, what symbol is used to represent the unknown oxidation state of nitrogen?

• x

• n

• z

• y

What is the oxidation number of nitrogen in the amide ion, NH2-?

• -3

• +1

• -2

• +3

How do you verify the oxidation numbers in NH2- add up correctly?

• By ensuring they add up to the charge of the ion

• By comparing with a periodic table

• By checking if they add up to zero

• By using a calculator

What is the charge of the amide ion, NH2-?

• -1

• 0

• +1

• -2

Which element's oxidation number is assumed to be unknown in the NH2- ion?

• Oxygen

• Nitrogen

• Carbon

• Hydrogen