Image shows a diaphragm, but this is not required

Electrolysis is actually a very simple process involving water, electricity and often an electrolyte (like salt, creating salt water).   A search on renergy cafe of electrolysis will produce many articles and videos of electrolysis is process.  But for our purposes we will be using a very simple model and picture to describe this process.

When electricity is run through water (sometimes containing an electrolyte)  two gasses are formed, hydrogen and oxygen.  Yup thats right H2O the elements in water.  This means that there are two parts hydrogen created for every one part oxygen.   In order for this process to work the rods must be used, they are called anodes on the positive side, and cathodes on the negative. The anode and cathode are placed in your water NOT TOUCHING, but close. Then when electricity is applied it flows through the anode, cathode but also through the water.  It is when this happens that the water is broken into is base elements.  The cathode, negative, creates two parts hydrogen gas and the anode, positive, creates the one part oxygen gas.

It is important to note that hydrogen is HIGHLY COMBUSTIBLE and although this is the reason is useful and being considered as a renewable energy, it is very DANGEROUS.  If you are going to try this at home, be careful and reference professional material for exact experiment details.  That being said, it is the combustibility that has enough energy to power a piston engine like that of a gasoline engine.

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