Iodine and Copper Compounds

The video tutorial explains how to write the formula for copper(I) iodide. It begins by identifying copper and iodine, noting that copper is a transition metal with a charge of +1, while iodine, found in group 17 of the periodic table, has a charge of -1. The tutorial emphasizes that the charges must balance to zero for a neutral compound. The final formula for copper(I) iodide is determined to be CuI.

What is the chemical symbol for copper?

• Co

• Cu

• Ca

• C

Why must the charges in copper(I) iodide add up to zero?

• Because it is a covalent compound

• Because it is an ionic compound

• Because it is a neutral compound

• Because it is a metallic compound

What is the charge on copper in copper(I) iodide?

• 2+

• 1+

• 1-

• 2-

In which group of the periodic table is iodine found?

• Group 18

• Group 17

• Group 16

• Group 15

What is the charge of iodide?

• 2-

• 1+

• 2+

• 1-

What is the final formula for copper(I) iodide?

• CuI2

• Cu2I2

• Cu2I

• CuI

Who is the presenter of the video?

• Dr. D

• Dr. B

• Dr. A

• Dr. C