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The liquid potassium chlorate decomposes into potassium perchlorate and potassium chloride. 4 KClO 3 → KCl + 3 KClO 4. The potassium perchlorate decomposes into potassium chloride and oxygen. KClO 4 → KCl + 2 O 2. The sugar in the candy reacts with oxygen, forming water and carbon dioxide. The reaction is exothermic and produces heat, smoke ...
A soda geyser is a physical reaction between a carbonated beverage, usually Diet Coke, and Mentos mints that causes the beverage to be expelled from its container. The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle.
As described by a 1980 patent, the candy is made by dissolving sugars in water and is evaporated at 320 °F (160 °C) until the water content is 3% by mass. [10] The water and sugar mixture is then cooled to 280 °F (138 °C), and while being intensely stirred, it is pressurized with carbon dioxide at 730 pounds per square inch [psi] (50 atm). [10]
[3] [17] This aerated chocolate can have an extremely low density (0.1–0.3 g/cm 3 (0.0036–0.0108 lb/cu in)), allowing it to dissolve quickly in the mouth. [18] It is produced by emulsifying water (optionally containing sugar) with liquid chocolate or chocolate liquor and milk solids. Removing the water then leaves the aerated chocolate behind.
Sugar glass is made by dissolving sugar in water and heating it to at least the "hard crack" stage (approx. 150 °C / 300 °F) in the candy making process.Glucose or corn syrup is used to prevent the sugar from recrystallizing and becoming opaque, by disrupting the orderly arrangement of the molecules.
Evaporation removes volatile liquids from non-volatile solutes, which cannot be done through filtration due to the small size of the substances. Liquid–liquid extraction removes an impurity or recovers a desired product by dissolving the crude material in a solvent in which other components of the feed material are soluble.
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Physical changes occur when objects or substances undergo a change that does not change their chemical composition. This contrasts with the concept of chemical change in which the composition of a substance changes or one or more substances combine or break up to form new substances. In general a physical change is reversible using physical means.