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Topic: Science Fair on Oxidation  (Read 2050 times)

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Offline zzzvivi

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Science Fair on Oxidation
« on: December 26, 2018, 02:45:20 PM »
I’m doing oxidation as my topic for the science fair, and I have thought of many experiments such as the apples, lemon juice, steel wool, etc... however, I feel as if they’re kind of too easy, and I have done experiments with chemicals to oxidative iron ( which I find fascinating enough to make it my topic) but I don’t know how to start. I I want to learn, but researching is hard when I don’t know what experiment is best. I’d love recommendations for oxidation experiments and good, reliable research websites. Thank you!

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« Last Edit: December 28, 2018, 07:06:03 AM by Borek »

Offline AWK

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Re: Science Fair on Oxidation
« Reply #1 on: December 27, 2018, 08:23:30 AM »
Look for reactions of H2O2, KMnO4, K2CrO4.

Offline Enthalpy

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Re: Science Fair on Oxidation
« Reply #2 on: December 27, 2018, 10:23:34 AM »
Using fruit, and more generally biological material, makes me a bit uneasy because their transformations are so diverse and complex that it's hard to give a simple and correct cause for them like "oxidation".

I feel this compound shouldn't be missing in your fair
it serves in luminescent toys like collars. Just display a few such toys with posters of the molecule and its reaction with air.

Reactions with air that speak to many people:
you can varnish a new surface every hour.

A zinc-air battery? Not very spectacular, so you must add big posters with explanations.

If you find a gas heater that ignites thanks to a catalyst when you open the valve, it has some "magic" in it, nice for a fair.

Illustrate the flash point by a compound that burns only with a wick or when hot. Maybe turpentine, well chosen petroleum, or Diesel oil.
add some candles and explanations.

Pour glycerol on potassium permanganate at room temperature, it ignites if the crystals are well chosen.

Sow iron power on a flame to show it burns.

Burn cotton in air. Compare with a telephone book to show the importance of tight air mix.

Burn ordinary and easily recognized sugar (saccharose in usual cube form) in air using a catalyst (ash).

If you access oxygen, show that fires are more intense than in air.

Need much more preparation and are potentially dangerous:
Ignite something like cotton by compressing air (like in a Diesel engine)
Burn flour in an air stream.

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