Reaction between copper II chloride and H2O2

The video tutorial demonstrates the creation of a copper chloride solution using copper and hydrochloric acid. The instructor then adds 35% hydrogen peroxide to the solution to observe the chemical reaction. The reaction is more vigorous than expected, producing a strong odor and an unexpected result.

What two substances are combined to create the copper chloride solution?

• Copper and acetic acid

• Copper and nitric acid

• Copper and hydrochloric acid

• Copper and sulfuric acid

What percentage of hydrogen peroxide is added to the copper chloride solution?

• 35%

• 20%

• 50%

• 10%

What was the speaker's initial reaction to the addition of hydrogen peroxide?

• The reaction was colorful and pleasant

• The reaction was slow and steady

• The reaction was violent and unexpected

• The reaction was calm and expected

How did the speaker describe the smell of the reaction?

• Pleasant

• Sweet

• Neutral

• Bad

What was the speaker's expectation of the reaction outcome?

• It was not what was expected

• It was exactly as expected

• It was slightly different than expected

• It was better than expected