Reactions of Copper with Sulfuric Acid

The video tutorial explains the reactions between copper and sulfuric acid. It distinguishes between reactions with dilute and concentrated sulfuric acid. With dilute sulfuric acid, no reaction occurs due to copper's position in the activity series. However, with concentrated sulfuric acid, a reaction takes place, and the video demonstrates how to balance the resulting chemical equation, adhering to the law of conservation of mass.

What are the two possible outcomes when copper is mixed with sulfuric acid?

• Copper does not react with sulfuric acid at all.

• Copper reacts with both dilute and concentrated sulfuric acid.

• Copper reacts only with dilute sulfuric acid.

• Copper reacts only with concentrated sulfuric acid.

What is the main difference between dilute and concentrated sulfuric acid in terms of water content?

• Neither contains any water.

• Dilute sulfuric acid has more water content.

• Concentrated sulfuric acid has more water content.

• Both have the same water content.

Why does copper not react with dilute sulfuric acid?

• Copper is not reactive at all.

• Copper is more reactive than hydrogen.

• Copper is less reactive than hydrogen.

• Copper is equally reactive as hydrogen.

What is the role of the activity series in predicting the reaction between copper and dilute sulfuric acid?

• It shows that copper is less reactive than sulfuric acid.

• It shows that copper is more reactive than sulfuric acid.

• It shows that copper cannot replace hydrogen.

• It shows that copper can replace hydrogen.

What happens when copper is mixed with concentrated sulfuric acid?

• A reaction occurs, producing copper chloride and water.

• A reaction occurs, producing copper oxide and water.

• A reaction occurs, producing copper sulfate and water.

• No reaction occurs.

How can the chemical equation for the reaction between copper and concentrated sulfuric acid be balanced?

• By adding a 2 in front of SO2.

• By adding a 2 in front of CuSO4.

• By adding a 2 in front of H2SO4 and H2O.

• By adding a 2 in front of Cu.

What law is obeyed when balancing the chemical equation for the reaction between copper and concentrated sulfuric acid?

• Law of Conservation of Mass

• Law of Constant Composition

• Law of Multiple Proportions

• Law of Definite Proportions

Which of the following is true about the reaction between copper and concentrated sulfuric acid?

• It produces sulfur dioxide gas.

• It produces oxygen gas.

• It produces hydrogen gas.

• It produces nitrogen gas.