Ionic Compounds and Copper Chemistry

The video tutorial explains how to write the formula for copper(I) phosphate. It begins by identifying copper and phosphate, noting that phosphate is a polyatomic ion. The tutorial discusses the ionic nature of the compound and the importance of charge balancing. The crisscross method is introduced to balance the charges, resulting in the formula Cu3PO4. The video concludes by verifying the formula and ensuring the net charge is zero.

What is the element symbol for copper?

• Co

• C

• Cu

• Ca

What is the charge of the phosphate ion?

• 3-

• 1-

• 2-

• 3+

What type of compound is formed between copper and phosphate?

• Covalent

• Metallic

• Molecular

• Ionic

What does the Roman numeral in copper(I) indicate?

• Valency

• Charge

• Atomic number

• Mass number

How do you balance the charges in an ionic compound?

• By adding electrons

• Using the crisscross method

• Using a catalyst

• By changing the element

What is the formula for copper(I) phosphate?

• Cu3(PO4)2

• Cu3PO4

• Cu2PO4

• CuPO4

How many copper ions are needed to balance one phosphate ion?

• Three

• Two

• Four

• One

What is the net charge of a correctly balanced ionic compound?

• Negative

• Positive

• Variable

• Zero

Who is the presenter of the video?

• Dr. A

• Dr. B

• Dr. C

• Dr. D