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Splitting H2O (Water) to Make Oxygen and Hydrogen

Splitting H2O (Water) to Make Oxygen and Hydrogen

Water is made up of two elements, hydrogen and oxygen, and these gases can be produced through electrolysis.

You can use electricity to split hydrogen gas out of the water similar to the process called electrolysis.

Try This! You will need the following:

  1. A 9 volt battery
  2. Two regular number 2 pencils (remove eraser and metal part on the ends)
  3. Salt
  4. Thin cardboard
  5. Electrical wire
  6. Small glass
  7. Water

As the electricity from the battery passes through and between the electrodes (the pencils), the water splits into hydrogen and chlorine gas, which collect as very tiny bubbles around each pencil tip.

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