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When the coke is opened, there is suddenly a great pressure differential. ... When you open the bottle the excess gas rushes out of the bottle and a hissing sound is heard. ... work at the Coca-Cola plant pump carbon dioxide into the Coke to carbonate it ... In nature, when we "bail" at the speed where the water level remains ...


Jun 14, 2012 ... Instead it is a physical reaction. ... It also means changing some factors may cause a larger or smaller ... While the soda is in the bottle, the gas is kept in solution by the bottle's ... The speed at which the Mentos falls through the soda can affect ... Mentos versus crushed, compare warm versus cold Diet Coke.


Mentos in Diet Soda-Physical Change or Chemical Change? ... When a warm bottle of cola is opened and gas spews is it a physical or chemical change?


Jul 14, 2009 ... Carbonated drinks are made by forcing carbon gas into a beverage ... If you shake the bottle before opening it, some of the carbon that has ...


Estimate the heat released during burning based on the balanced chemical ... Liquids: If the temperature of a gas is reduced, which in turn reduces the molecular speed, or the .... A reaction in the open takes place at 1 atm of pressure .


Nov 13, 2000 ... Changes of state such as melting or boiling are physical changes and are ... unless there is a chemical change whether the matter is solid, liquid or gas. ... chemical changes rather than physical changes are initiated by heat.


Physical chemistry is the study of the physical properties of chemicals, which are .... Hydrogen is an explosive gas and oxygen is a gas that fuels fire. ... We know that wood is flammable because it becomes heat, ash, and carbon .... Physical changes do not cause a substance to become a fundamentally different substance.


reactions, chemical energy and rates of reaction, chemistry around the house, chemistry .... Carla L. Clemens: Cover design and section opening pages .... How Much Gas Is in a Bottle of Cola? 5. 3. Solution of a Gas: What Happens During a Pressure Change? 8. 4. ... The Heat Is On with Zinc and Copper Sulfate. 119. 43.