chemical reactions producing oxygen
Posted 1 March 2009 - 08:33 PM
Can anyone help!
Posted 2 March 2009 - 08:08 AM
Decomposition of calcium hypochlorite?
The way oxygen originally isolated, by decomposition of mercuric oxide?
To test, perhaps the very classic glowing splint experiment? A small piece of wood with an ember will flare up and burn in an oxygen atmosphere.
Edited by UC, 2 March 2009 - 08:51 AM.
Posted 2 March 2009 - 08:11 AM
When a plant grows, it consumes water and CO2, to produce glucose and oxygen:
The reaction has been happening for hundreds of millions of years, and you can investigate it without safety goggles or a fume hood.
Posted 2 March 2009 - 05:05 PM
I'm surprised that no one has suggested electrolysis yet. Run an electric current from a battery through salt water, and it will split the water into hydrogen and oxygen. Capture the oxygen in a small tube, then do the above test.
-> Woody Allen
Posted 2 March 2009 - 05:50 PM
You could do it the old way, by heat decomposition of mercury oxide. That is one of the first ways oxygen was produced, and I think the first recorded method. However, mercury is poisonous and heating mercury is not the best of classroom ideas.
Edited by Mr Skeptic, 2 March 2009 - 05:57 PM.
Posted 2 March 2009 - 10:08 PM
consider text in my posts which is in Purple as being sarcastic.
Posted 3 March 2009 - 01:21 AM
I believe that using a bit of as catalyst is going to be easier. It is my understanding that is quite a bit more stable and resistant to decomposition.
As far as I can tell, this is just homework, so dangerous isn't really an issue. If it is actually being done, I suggest adding washing soda and activated carbon to some plain 3% hydrogen peroxide. The bubbles will be .
As for big314mp's suggestion, that's not quite a reaction to some ears, although it will do as advertised.
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