Thread: WHY has this not changed everything??

Originally Posted by khh

Yes, it can. In pure water you'll always have a few H₃O⁺ and OH^- ions, so if you expose the water to a direct current, you'll get Hydrogen and Oxygen gas.

True, but in practical terms the amount of hydrogen released is insignificant.

If you've got chloride gas bubbling at the anode, you're not really electrolysing water the water, but you may get hydrogen gas depending on what positive ions you've got in the solution.

If you're using table salt, you definitely get hydrogen on the cathode, makes for good homemade fireworks .