Adding heat like a spark will give the necessary energy to get the reaction started so a couple O 2 molecules to break into 2 oxygen atoms and bond with H 2 to make a few water molecules. When these molecules form, it generates more heat it's an "exothermic" reaction , and this heat allows a few more O 2 molecules to break into oxygen atoms and form a few more molecules of water can form, generating more heat A way to see water forming from oxygen and hydrogen in a lab which should only be done with a science teacher supervising is to do a "hydrogen pop" test.
You can use a small upside-down test tube to collect hydrogen gas, then hold a lit match at the mouth and you'll hear a popping sound. The heat allows the hydrogen to combine with the small amount of oxygen in the air. The new catalysts could lead to eventual development of more efficient hydrogen fuel cells, substantially lowering their cost, Heiden said.
Materials provided by University of Illinois at Urbana-Champaign. Note: Content may be edited for style and length. Science News. The well-known reaction also describes what happens inside a hydrogen fuel cell. ScienceDaily, 1 November University of Illinois at Urbana-Champaign. Retrieved November 10, from www. The researchers also discovered However, catalysts, including Just in case you were wondering. It was easy to understand and not at all boring to read. Thank you for answering my question with a satisfying answer.
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