Copper and Zinc Reactions

The video tutorial explains the properties of copper sulfate as an ionic compound in an aqueous solution. It describes an experiment involving solid zinc and copper sulfate, predicting a redox reaction. The tutorial details the electron transfer process, resulting in neutral solid copper and zinc cations. Visual changes post-reaction are discussed, and the oxidation and reduction half-reactions are explained.

What type of compound is copper sulfate?

• Molecular compound

• Covalent compound

• Ionic compound

• Metallic compound

What happens when solid zinc is added to a copper sulfate solution?

• The solution turns red

• Copper precipitates out and zinc dissolves

• No visible change occurs

• Zinc dissolves without any reaction

Which element is more electronegative, copper or zinc?

• Neither, they are non-metals

• Zinc

• Copper

• Both have the same electronegativity

What is the result of the redox reaction between zinc and copper?

• Both become anions

• Zinc becomes a cation and copper becomes neutral

• Copper becomes a cation and zinc becomes neutral

• Both remain unchanged

What does the solution look like after the reaction?

• It becomes clear

• It becomes cloudy

• It becomes green

• It becomes blue

What solid forms as a result of the reaction?

• Solid sulfate

• Solid zinc

• Solid copper

• Solid water

What happens to the oxidation state of zinc during the reaction?

• It becomes negative

• It remains the same

• It decreases

• It increases

What happens to the oxidation state of copper during the reaction?

• It remains the same

• It decreases

• It becomes positive

• It increases

Which process describes the loss of electrons?

• Precipitation

• Reduction

• Oxidation

• Neutralization

What remains unchanged in the reaction?

• Sulfate's charge

• Copper's charge

• Water's charge

• Zinc's charge