Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

NOVA Online (see text links below)
On Fire
Chain Reaction

Chain reaction (1)

Here we look at how the combustion of hydrogen gas can lead to a chain reaction.

On the face of it, the chemical reactions that take place in the combustion of hydrogen are relatively simple: The hydrogen molecules combine with oxygen molecules to form water molecules, and energy is released in the process. The equation for this reaction is this...

    H2 + O2 -> H2O
    More about this equation

This equation doesn't show, however, all of the intermediate reactions that lead to the formation of water. These reactions can be initiated when a hydrogen atom is added to hydrogen and oxygen molecules.


Printer-Friendly Format   Feedback

Name That Shell | Anatomy of a Firework | Pyrotechnically Speaking | On Fire
Resources | Transcript | Teacher's Guide | Site Map | Fireworks! Home

Search | Site Map | Previously Featured | Schedule | Feedback | Teachers | Shop
Join Us/E-Mail | About NOVA | Editor's Picks | Watch NOVAs online | To print
PBS Online | NOVA Online | WGBH

© | Updated January 2002

Support provided by

For new content
visit the redesigned
NOVA site

Shop Teachers Feedback Schedule Previously Featured Site Map Search NOVA Home Site Map Fireworks! Home