Basics
What is electrolysis?
The process of using electricity to break a compound into simpler substances.
What device provides electricity?
A battery or power supply.
What is the symbol for hydrogen?
H
What container holds the water?
A beaker or container.
What gas produced can be used as fuel?
Hydrogen.
What substance is split in water electrolysis?
Water (H₂O).
What are the metal rods called?
Electrodes
What is the symbol for oxygen?
O
What do we call the electrodes?
Anode and cathode.
Where is electrolysis used in industry?
Hydrogen production, metal purification, and electroplating.
What type of energy is used?
Electrical energy.
Which gas forms at the cathode?
Hydrogen
What is the balanced equation for water electrolysis?
2H₂O → 2H₂ + O₂
What liquid helps conduct electricity?
An electrolyte solution (like saltwater or acidified water).
Why is hydrogen considered clean energy?
Because it produces water when burned and no carbon dioxide.
What gases are produced?
Hydrogen gas (H₂) and oxygen gas (O₂).
Which gas forms at the anode?
Oxygen
What is oxidation?
Loss of electrons.
Why are bubbles formed?
Because gases (hydrogen and oxygen) are being produced.
What problem can electrolysis help solve?
Producing clean hydrogen fuel and storing renewable energy.
What is the chemical formula of water?
H₂O
Why is an electrolyte needed?
To allow electricity to flow through the solution.
What is reduction?
Gain of electrons.
What safety equipment should be used?
Safety goggles and gloves.
Why is renewable electricity important?
It makes hydrogen production cleaner and reduces pollution.