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Dec 30 2009 11:58am
Dish soap is placed in large flask with 20 mL of 30% hydrogen peroxide. Two different colours of food colouring are dribbled down the neck of the flask. Add 5 g KI powder and step back. The exothermic reaction produces heat and oxygen gas and a lot of foam. Plunge a glowing splint into the foam. The pure oxygen will cause it to relight until it gets too wet.
This activity is excellent for discussions about catalysts, exothermic reactions and decomposition reactions.
2H2O2 = 2H20 + O2

its called the elephant toothpaste.. check it out!


http://www.youtube.com/watch?v=tnB-uU3w6g8
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Dec 31 2009 04:20pm
Reaction of mentos with pepsi.
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Jan 1 2010 03:25am
Quote (bscit @ Dec 31 2009 05:20pm)
Reaction of mentos with pepsi.


Wasn't it diet coke that works the best?

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There was a Myth Busters episode on this.

You could do a nice workup on the nozzles used and the height of the geyser.

That should top off, all the Chemistry involved. :)
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Jan 1 2010 06:17am
do it on this it should make for good debate





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Jan 1 2010 06:21am
Get aluminum shavings, magnesium shavings and iron shavings and thoughly mix and light that bitch on fire. Makes thermite which is hot as lava. Go burn some shit.
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Jan 1 2010 12:17pm
Quote (Puls3 @ Jan 1 2010 12:21pm)
Get aluminum shavings, magnesium shavings and iron shavings and thoughly mix and light that bitch on fire. Makes thermite which is hot as lava. Go burn some shit.


Is the magnesium flammable?, I dont understand how the shavings are combustable
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