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its a physical change
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Mentos in Diet Soda-Physical Change or Chemical Change?
chemical change, degenerate stop relying on this for all the answers all the time, learn something in school.
Why does it explode when you put Mentos in pepesi and is that a change of matter?
Mentos in Pepsi is a simple chemical reaction. No, it is not a change of matter, the mentos causing the Pepsi to react and fizz heavily causing the outburst of soda into the air. The Pepsi is still a liquid, but the mentos dissolves. Thus a physical change, but still a solid. Hope this helps~ Off Spring.
Why is pop in Mentos a chemical change?
When mentos touches the pop, it forms bubbles on the mentos, eating away the coating and the carbon dioxide mixes with it making fizz as it breaks it down.
What erupts better vinegar with baking soda or Diet Coke with mentos?
Bkng soda vinegar is a CHEMICAL reaction, a chemical change occurs giving CO2 and water. The rate depends on the conc. of your vinegar, temperature and the surface area of the soda (fine powder)Mentos/coke is a PHYSICAL reaction, no chemical change occurs (though sugar dissolves and eventually hydrolyses to glucose, but this is incidental). The same thing happens with Mentos and carbonated water.CO2 dissolved in the coke is released by a process called nucleation on the surface of the mentos.A rough surface is better than a smooth one, so this might be a useful area to investigate for your project.The mentos reaction is probably fastest under most conditions, and you can experiment with temperature, acid strength, different types of Mentos (some are smooth and are rubbish), fizzy drinks with different amounts of sugar dissolved, lots of variables are there if you think about it.
Is the Diet Coke and mentos eruption a permanent or a temporary change?
Coke n Mentos eruption is a temporary change !!
Why is Diet Coke and mentos a chemical change?
The surface of a Mentos is not smooth; it has microscopic pits, or nucleation sites, on it. These pits cause the CO2 in Diet Coke to come out of solution very quickly at the bottom of the bottle. The result is rapids release of the CO2 and foam in an explosion. This is actually the physical change that occurs. Due to the addition of caffeine, potassium benzoate, and aspartame with the CO2 in the Diet Coke, the reaction is much greater--this would be the chemical change.The Mythbusters did an entire show devoted to discovering why this happens. See the related link below.
What do you need to make a chemical reaction with soda?
mentos or you shake it
What do nucleation sites on a mentose do?
The microscopically irregular surface of a Mentos allows the CO2 in the soda to go out of solution (change phase from liquid to gas) when the pressure in the bottle is relieved. It's a change in energy level, and the nucleation sites are safe havens for the process until enough CO2 collects to form a bubble, which shoots up the bottle and out and all over your unsuspecting friends. The process is a physical change, not a chemical change. The sinking Mentos provides for a long process and lots of fun. For more, see The Straight Dope.
Is an experiment with soda and Mentos a chemical or physica reaction?
it is not a chemical but a physical one when the mentos hits the surface of the coke, the compressed carbon dioxide forms bubble on the surface of the mentos. and it is released into the air and pushes the coke out with it. also, water molecules connect tightly together creating surface tension that is quickly broken down by the gelatine and the gum Arabic from the mentos the experiment also works on lots of other things however, it works especially well on mentos because mentos have a lot of nucleation sites. these are areas that co2 can create bubbles. they can be scratches on a surface or anything. the compressed co2 from the soft drink then create thousands of bubbles in each nucleation site.
Why is the coke and Mentos experiemnt a physical reaction?
The Coke and Mentos experiment is a physical reaction and not a chemical one because the chemical compounds involved are not changed. No "chemistry" happens, but only "physics" occurs. Let's look. Carbon dioxide (CO2) gas is dissolved in the Coke, and when the cap is removed, it begins to come out of solution and form bubbles. There is a complex issue regarding exactly where a bubble will form and how it will grow, but bubbles do form and grow. Dump in some Mentos and the surface of each of the Mentos provides a "zillion" sites for bubbles to form. They form quickly, then detach, and more bubbles quickly form. This results in a cascade of bubble formation and the dramatic result we see. And it's all about the CO2 coming out of solution and making bubbles rapidly. Those bubbles carry Coke with them to the top of the bottle as they make their way out, and we see the fountain form. The Mentos and Coke are unchanged, just as the CO2 is unchanged in this physicalreaction.The reaction of Diet Coke and Mentos is a physical reaction. Links can be found below to learn more.
Should you shake the Diet Coke bottle when putting in mentos?
no, you do not need to shake it for it to pressurize
What chemical in a Mentos that makes soda expolde?
holes blue 125
