What device supplied the energy needed to split the water molecule
into its component atoms?
(The 9-volt battery supplied the electricity needed for this
What are the components of water that are released during its
(Hydrogen and oxygen gas.)
did you need to expose graphite on both ends of each pencil?
(You needed to expose both ends of the conducting surface.)
didn't gas bubbles collect along the wooden shaft of the pencil?
(Wood is not a conductor of electricity. Therefore, gas generation
was limited to the exposed graphite surface.)