Nucleation is a physical reaction that is best explained using the example of Mentos in Coke. More information on the reaction of nucleation can be found on websites such as Wikipedia and Wise Geek.
The reaction between Mentos (containing nucleation sites) and soda (containing carbon dioxide) is a physical reaction that causes the rapid release of carbon dioxide gas. This reaction is not a chemical reaction, so there is no balanced chemical equation for it.
A nucleation site is a location where the process of nucleation begins, leading to the formation of a new phase or a new crystal structure. It provides a surface for molecules to come together and form a stable nucleus, which then grows into a larger structure. Nucleation sites are important in many physical and chemical processes, such as crystallization and phase transitions.
Diet Coke and Mentos create a vigorous physical reaction rather than a chemical double replacement reaction. When Mentos candies are added to Diet Coke, the rough surface of the Mentos disrupts the liquid's surface tension and allows carbon dioxide gas that is dissolved in the soda to rapidly escape, resulting in an explosive fountain of foam. This reaction is primarily a physical one involving nucleation, not a chemical reaction where bonds are broken and formed.
Nucleation is realized on surfaces with centers of nucleation, which are imperfections of the surface; nucleation consist of the agglomeration of gas molecules to form evolving bubbles of gases.
When Mentos candy is mixed with Yakult, a fermented milk drink, it can cause a physical reaction known as a nucleation reaction. The Mentos candy has a rough surface that provides a large number of nucleation sites, which are places where gas bubbles can form. Yakult contains carbon dioxide gas, which is dissolved in the liquid under high pressure. When the Mentos are added to the Yakult, the carbon dioxide gas is rapidly released from the liquid and forms bubbles. The bubbles of gas expand rapidly, causing the Yakult to overflow or shoot out of the bottle. The reaction between Mentos and Yakult is a physical reaction, rather than a chemical reaction. It does not produce any harmful or toxic substances, and is safe to observe. The reaction is often used in science demonstrations or as a fun and interesting way to explore the properties of gases and liquids.
A nucleation site is a thing that starts bubbles in a soda
It is a physical property not a reaction
No. A slushy is a physical reaction. The mixture is frozen, therefore it is a physical reaction.
it is certainly not a chemical reaction, and it is still melting something, so it is a physical reaction. it does depend HOW you melt it, but other than that, it is a physical reaction.
The reaction between Mentos and soda is primarily a physical reaction rather than a chemical one, resulting in an exothermic process. When Mentos are added to soda, the rapid release of carbon dioxide gas creates a vigorous eruption, releasing energy in the form of heat. This is due to the nucleation sites on the surface of the Mentos facilitating the rapid escape of dissolved gas from the liquid.
Water is not a reaction at all. If you mean to ask if a state change in water is chemical or physical, it is physical.
no, technically there is no such thing as a physical reaction. It is, however, a physical change. when two things react, it is chemical so you cannot have a "Physical" reaction in chemistry