Experimentos De Quimca

Mentos in various carbonated liquids. From left to right: carbonated water (Perrier), Classic Coke, Sprite, and Diet Coke. By K. Shimada [Wikipedia]
You've all seen this before. The Diet Coke andMentos experiment by Fritz Grobe and Stephen Voltz of EepyBird was the stuff of Internet legend back in 2007. But what exactly happens when you drop a Mentos into a solution of Diet Coke?
MythBustersexplain:
According to Hyneman (he's the mustachioed MythBuster), it's a process called "nucleation," in which the particular chemistry of the Mentos candy interacts with the chemistry of thecarbonated Diet Coke, causing the carbon dioxide gas, or CO2, to suddenly come out of suspension in the liquid and make a break for freedom. [...]
Hyneman says, "There's a cascade that happens with -- it's alittle esoteric -- an ion exchange. Basically the Mentos start to dissolve, and it's like tripping a switch. It's not what you would call a chain reaction, because that's something else in chemistryterms, but it's a cascade whereon all of a sudden, all of the CO2 that was contained in the liquid is suddenly not as attracted to the liquid as it was before, because of this slight change in thechemistry that occurs."
Whatever you do, don't eat a mentos then chug a mouthful of diet soda, mmkay?
http://www.neatorama.com/2009/11/04/top-10-mad-science-worthy-chemistry-experiments/

ExperimentoCasero con Burbujas explosivas

Hoy vamos a hacer uno de esos experimentos caseros que todos desean hacer. Aún no se que tenga el fuego, pero siempre llama la atención de todos los que alguna vezjugamos a ser “científicos”. El experimento de hoy consiste en crear una serie de burbujas que literalmente explotarán en una pequeña e inofensiva bola de fuego.
Materiales:
Taza de té
DetergenteAlgún aerosol que tenga pico aplicador
Chispero largo de cocina
Procedimiento:
Lo primero que tienes que hacer es colocar un poco de agua en la taza de té; llénalo, pero sin llegar hasta el borde....