Nickel Oxidation States and Charges

The video tutorial explains how to determine the oxidation state of nickel in nickel(II) carbonate (Ni3). It begins by identifying the compound as neutral, meaning the oxidation numbers must sum to zero. Nickel, being a transition metal, has an unknown charge, but by examining its bond with the carbonate ion, which has a charge of -2, it is deduced that nickel must have an oxidation state of +2 to balance the charge. The video concludes with a reference to additional resources for understanding the oxidation state of carbon in the carbonate ion.

What is the oxidation state of nickel in Ni3, given that it is a neutral compound?

• +1

• +2

• 0

• -2

Why is the charge of nickel not immediately obvious?

• Because nickel is a noble gas

• Because nickel is a transition metal

• Because nickel is a non-metal

• Because nickel is a halogen

What is the charge of the carbonate ion in nickel(II) carbonate?

• -1

• -2

• +1

• +2

For the compound to be neutral, what must the oxidation state of nickel be?

• +1

• 0

• +2

• -2

Where can you find more information on finding the oxidation state of carbon in the carbonate ion?

• In the video description

• In the video comments

• In the video title

• In the video thumbnail