Polyatomic Ions and Their Properties

The video tutorial explains how to write the formula for Copper(I) Bicarbonate. It begins by identifying the element symbol for copper and the significance of the Roman numeral indicating its charge. The bicarbonate ion is introduced as a polyatomic ion with a specific charge, and the need to balance charges to achieve a net charge of zero is emphasized. The tutorial concludes with the final formula for Copper(I) Bicarbonate and mentions its alternative name, Copper(I) Hydrogen Carbonate.

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

• The charge of the copper ion

• The mass of copper

• The atomic number of copper

• The number of copper atoms

Which of the following is a characteristic of a polyatomic ion?

• It consists of a single atom

• It is composed of multiple atoms

• It is always a metal

• It has a variable charge

What is the chemical formula for the bicarbonate ion?

• H2CO3

• HCO3

• HCO2

• CO3

How can you determine the charge of the bicarbonate ion?

• By memorizing it or using a polyatomic ion table

• By looking it up on the periodic table

• By calculating the atomic mass

• By counting the number of hydrogen atoms

Why do the charges of copper and bicarbonate need to balance?

• To ensure the compound is stable

• To make the compound colorful

• To give the compound a metallic property

• To make the compound soluble

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

• CuCO3

• Cu(HCO3)2

• Cu2HCO3

• CuHCO3