0
Is an experiment with soda and Mentos a chemical or physica reaction?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Is the Mentos and coke experiment exothermic?
No, its an Endothermic Reaction.
What do you need to make a chemical reaction with soda?
mentos or you shake it
How does the temperature of coke affect the chemical reaction of coke and Mentos?
no but if it's warm it's not as tasty
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.
What makes the eruption of Mentos candy and soda?
A chemical Reaction the mentos mix with the acid causing foaming the pressure gets to much and bursts the bottle
What happens when you microwave Diet Coke with Mentos inside of it?
If you put a mentos in the diet coke and put it on the microwave, it will cause a chemical reaction causing your microwave to explode.
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.
How come soda explodes if you put Mentos gum in it?
because a chemical reaction happens to make it explode
What chemicals can be added to Coca-Cola to cause a chemical reaction?
Carbohydrates are added to the coca cola and mentos which react together to cause a reaction.
Which soda has a stronger reaction to Mentos?
I strongly believe diet coke has a stronger reaction to mentos!
What are some cool science fair projects?
One cool project is what chemical reaction does mentos and coke make after mixing them!
What is the purpose of the coke and Mentos experiment?
It is really just to show younger people how different things react, usually after performing this experiment the class will be taught the meaning of the terms independent, dependant and controlled variables and will identify these terms within the experiment. Eg. INDEPENDENT: flavours of mentos/ coke DEPENDENT: height of reaction (spurt) CONTROL: Level mentos is dropped from.
