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With concentrated sulfuric acid, granulated table sugar performs a degradation reaction which changes its form to a black solid-liquid mixture. [1] The carbon snake experiment can sometimes be misidentified as the black snake , "sugar snake", or "burning sugar" reaction, all of which involve baking soda rather than sulfuric acid.
Blue bottle reaction video. The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared in a closed bottle containing some air. Upon standing, it spontaneously turns from blue to colorless due to reduction of methylene blue by the alkaline glucose ...
For example, in a recipe that calls for 10 pounds of flour and 5 pounds of water, the corresponding baker's percentages are 100% for the flour and 50% for the water. Because these percentages are stated with respect to the weight of flour rather than with respect to the weight of all ingredients, the sum of these percentages always exceeds 100%.
Dry bulk ingredients, such as sugar and flour, are measured by weight in most of the world ("250 g flour"), and by volume in North America ("1 ⁄ 2 cup flour"). Small quantities of salt and spices are generally measured by volume worldwide, as few households have sufficiently precise balances to measure by weight.
To take advantage of this style of leavening, the baking must be done at high enough temperatures to flash the water to steam, with a batter that is capable of holding the steam in until set. This effect is typically used in products having one large cavity, such as popovers, Yorkshire puddings, pita, and most preparations made from choux pastry.
The crusts of most breads, such as this brioche, are golden-brown mostly as a result of the Maillard reaction. The Maillard reaction ( / m aɪ ˈ j ɑːr / my- YAR ; French: [majaʁ] ) is a chemical reaction between amino acids and reducing sugars to create melanoidins , the compounds that give browned food its distinctive flavor.
Generally, one teaspoon (5 g or 1/6 oz) of baking powder is used to raise a mixture of one cup (120 g or 4oz) of flour, one cup of liquid, and one egg. However, if the mixture is acidic, baking powder's additional acids remain unconsumed in the chemical reaction and often lend an unpleasant taste to food.
Inverted sugar syrup, also called invert syrup, invert sugar, [1] simple syrup, sugar syrup, sugar water, bar syrup, syrup USP, or sucrose inversion, is a syrup mixture of the monosaccharides glucose and fructose, that is made by hydrolytic saccharification of the disaccharide sucrose.