Burst your bubble

The video tutorial demonstrates an experiment using a bottle, 9-volt batteries, and stainless steel nails to perform electrolysis. The batteries are connected in series to the nails, which are submerged in water mixed with Borax, an electrolyte that enhances conductivity. The process splits water molecules into hydrogen and oxygen, which form bubbles that rise to the surface. These gases can be ignited with a match, demonstrating the principles of electrolysis and gas collection.

What is the purpose of using stainless steel nails in the experiment?

• To make the setup lighter

• To increase the voltage

• To conduct electricity better

• To prevent rusting

Why is Borax added to the water in the experiment?

• To make the water more conductive

• To decrease the pH level

• To change the color of the solution

• To increase the temperature of the solution

What role does the Borax solution play in the experiment?

• It acts as a catalyst

• It serves as an electrolyte

• It provides insulation

• It acts as a solvent

During the electrolysis process, what happens to the water molecules?

• They evaporate

• They freeze

• They break into hydrogen and oxygen

• They condense

What is the final step in the experiment after the gases are collected?

• Igniting the gas mixture

• Measuring the gas volume

• Cooling the solution

• Filtering the solution