Copper(II) Nitrate Properties and Reactions

The video tutorial explains how to determine the number of ions in Copper II Nitrate (Cu(NO3)2). It begins by identifying the compound as ionic, consisting of a metal (copper) and a polyatomic ion (nitrate). The tutorial discusses the charges of the ions, noting that copper is a transition metal and requires understanding its bonding to determine its charge. The nitrate ion is identified as having a charge of one minus, and since there are two nitrate ions, copper must have a charge of two plus to balance the compound to a net charge of zero. When dissolved in water, Copper II Nitrate dissociates into one copper ion (Cu2+) and two nitrate ions (NO3-), resulting in a total of three ions.

What type of compound is Copper(II) Nitrate?

• Molecular compound

• Metallic compound

• Ionic compound

• Covalent compound

What is the charge of the nitrate ion (NO3) in Copper(II) Nitrate?

• 2-

• 1+

• 2+

• 1-

How many nitrate ions are present in one formula unit of Copper(II) Nitrate?

• Two

• Four

• Three

• One

What happens to Copper(II) Nitrate when it is dissolved in water?

• It forms a precipitate

• It remains unchanged

• It dissociates into ions

• It evaporates

What is the charge of the copper ion in Copper(II) Nitrate?

• 1+

• 2+

• 1-

• 2-

How many total ions are produced from one formula unit of Copper(II) Nitrate when dissolved in water?

• Four

• Three

• Two

• Five

Which of the following ions is not formed when Copper(II) Nitrate is dissolved in water?

• None of the above

• Cu+

• NO3-

• Cu2+