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)
Search for a Safe Cigarette  
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.

Continue...



To Print

Anatomy of a Cigarette | "Safer" Cigarettes: A History | The Dope on Nicotine | On Fire
Resources | Teacher's Guide | Transcript | Site Map | Search for a Safe Cigarette 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 October 2001
 

Support provided by

For new content
visit the redesigned
NOVA site

Shop Teachers Feedback Schedule Previously Featured Site Map Search NOVA Home Search for a Safe Cigarette Home Site Map Search for a Safe Cigarette Home