Copper II Phosphate and Oxidation Numbers

The video tutorial explains how to determine the oxidation numbers in copper II phosphate. It begins by discussing the neutrality of the compound and the role of phosphate ions, which have a three minus charge. The tutorial then demonstrates how to calculate the oxidation numbers for copper and phosphate, ensuring they add up to zero. The oxidation number for copper is determined to be +2, which is why it is called copper II. The video concludes with a mention of additional resources for further learning.

What is the overall charge of a neutral compound like copper II phosphate?

• Zero

• Depends on the elements

• Negative

• Positive

What is the ionic charge of the phosphate ion (PO4)?

• Three minus

• Four minus

• Two minus

• One minus

When calculating oxidation numbers for an ion, what must they add up to?

• The charge on the ion

• The atomic number

• The number of atoms

• Zero

How many phosphate ions are present in copper II phosphate?

• Four

• Three

• Two

• One

What is the total charge required for two phosphate ions?

• Minus six

• Minus three

• Plus three

• Plus six

What is the oxidation number of copper in copper II phosphate?

• +2

• +1

• +4

• +3

Why is copper in copper II phosphate referred to as copper II?

• Because it is the second most common form

• Because it forms two bonds

• Because it has an oxidation number of +2

• Because it has two atoms

Where can you find more information on the oxidation number of phosphorus in PO4?

• In the video description

• In the textbook

• In the appendix

• In the periodic table