Copper(I) Cyanide and Cyanide Ion Concepts

The video tutorial explains how to write the formula for Copper I Cyanide. It begins by identifying the element symbols for copper and cyanide, noting that copper is a transition metal with a 1+ charge, while cyanide is a polyatomic ion with a 1- charge. The tutorial emphasizes the importance of balancing these charges to form a neutral ionic compound. The final formula for Copper I Cyanide is CuCN, with a net charge of zero. The video concludes with a brief thank you from Dr. B.

What does the Roman numeral in Copper(I) Cyanide indicate?

• The number of copper atoms

• The charge of the copper ion

• The number of cyanide ions

• The atomic mass of copper

Which of the following is true about the cyanide ion?

• It is a transition metal

• It is found on the periodic table

• It has a charge of 1+

• It is a polyatomic ion

What type of compound is formed between copper and cyanide?

• Ionic compound

• Covalent compound

• Molecular compound

• Metallic compound

Why is it important for the charges in Copper(I) Cyanide to balance?

• To change its color

• To increase its solubility

• To make it a covalent compound

• To ensure the compound is stable

What is the final formula for Copper(I) Cyanide?

• CuC2N

• Cu2CN

• CuCN

• CuNC