Oxidation Numbers and Ionic Charges

This video tutorial explains how to determine the oxidation number of nickel in nickel sulfate. It begins by noting that the compound is neutral, meaning the oxidation numbers sum to zero. The sulfate ion has a 2- charge, and the video demonstrates how to set up an equation to find the oxidation number of nickel, which is +1. The tutorial concludes with a reference to additional resources for finding the oxidation number of sulfur in the sulfate ion.

What is the overall charge of a neutral compound?

• Depends on the elements

• Zero

• Negative

• Positive

What is the ionic charge of the sulfate ion?

• 1-

• 0

• 2-

• 3-

How do the oxidation numbers in an ion relate to its charge?

• They add up to the charge of the ion

• They are always positive

• They are always negative

• They add up to zero

What equation is set up to find the oxidation number of nickel?

• 2x + 2 = 0

• x - 2 = 0

• 2x - 2 = 0

• x + 2 = 0

What is the oxidation number of each nickel atom in nickel sulfate?

• -1

• +1

• +2

• 0

What additional resource is provided for finding the oxidation number of sulfur?

• A video tutorial

• A link in the description

• A textbook reference

• A PDF guide

Who is the presenter of the video?

• Dr. B

• Dr. A

• Dr. D

• Dr. C