Copper(II) Sulfate and Its Properties

The video tutorial explains how to write the formula for copper(II) sulfate pentahydrate. It begins by breaking down the components: copper(II) sulfate and pentahydrate. Copper is identified as Cu, and sulfate as SO4 with a 2- charge. The charges of copper and sulfate balance each other in the ionic compound. Pentahydrate is explained as five water molecules (5H2O) added to the compound. The video concludes by mentioning the anhydrous form of copper(II) sulfate, which lacks water.

What is the chemical symbol for copper as found on the periodic table?

• Cu

• Ca

• Co

• C

What is the charge of the sulfate ion in Copper(II) Sulfate?

• 2-

• 2+

• 1-

• 1+

Why is copper considered a transition metal in Copper(II) Sulfate?

• It is an alkali metal.

• It is a noble gas.

• It is a non-metal.

• It has a variable oxidation state.

What does the term 'pentahydrate' indicate in a chemical formula?

• Presence of five sulfate ions

• Presence of five oxygen atoms

• Presence of five hydrogen atoms

• Presence of five water molecules

How is the water represented in the formula for Copper(II) Sulfate Pentahydrate?

• 5OH2

• H5O2

• H2O5

• 5H2O

What happens to Copper(II) Sulfate Pentahydrate when it is heated?

• It becomes anhydrous Copper(II) Sulfate.

• It remains unchanged.

• It turns into a gas.

• It forms a new compound.

What is the term used for Copper(II) Sulfate without water?

• Anhydrous Copper(II) Sulfate

• Hydrated Copper(II) Sulfate

• Dihydrate Copper(II) Sulfate

• Monohydrate Copper(II) Sulfate