chemical change: bleaching your hair: chemical change: poouring milk on your cereal: physical change: buring leaves: chemical change: corroding metal: chemical change: freezing chocolate covered bananas: physical change: making salt water to gargle with: physical change: separating sand from gravel: physical change: The bleach oxidizes the melanin molecule. when you bleach your hair it is a chemical change,because you are adding the chemical from the bleach to your hair and "you can't change it back to the old". The melanin is still present, but the oxidized molecule is colorless. It uses hydrogen peroxide to break down hair’s natural color, then the peroxide also oxidizes a polymeric reaction with dye … Bleaching products disrupt the hair's cuticle layer to make it more permeable, which allows hydrogen peroxide -- a key component of hair bleach -- to penetrate the shaft. Bleaching your hair … a chemical change Posted by sherrycclarkschool under Uncategorized Leave a Comment . Protective styles are a great option if you want to test a by aimee simeon Hair bleach is a chemical reaction between melanin (the material in hair that gives it color) and hydrogen peroxide. Quite … Bleach: Chemical change because the hydrogen peroxide is reacting with the melanin (the part of the hair that gives it the color). Hydrogen peroxide oxidizes the hair's pigment, stripping away the melanin and, as a result, … It turns out that when you bleach your hair, you are changing the chemical composition of the hair: Hair bleaching is the process of removing the pigment from the hair strand. Hair Colors. bleaching your hair, lighting a match letting fruit rot are chemical changes (chemical reactions), because new substances are formed, the atoms are rearranged and the reaction is followed by an energy change. Dramatic changes in hair color often require bleaching to strip the hair of the natural or artificial color and allow the hair to absorb the new color. Stylists also use chemical … 12. Some inexpensive (drugstore brand) hair colors contain metallic salts which can turn your hair to mush if they’re processed with bleach, perm solutions, or chemical straighteners. Hair bleaching typically uses chemicals such as hydrogen peroxide or ammonium hydroxide. Temporary hair dye washes out, so it is a physical change. 1. Hair coloring is a slightly more complicated version of hair bleach. Check the ingredients if you’ve used a drugstore brand hair color to make sure it doesn’t contain any metallic dye components. However, bleached hair … Bleach is used to lighten hair. Bleaching removes hair color through the process of oxidation. Finally, hair bleaching relies on chemicals to be effective. Your texture doesn't just slightly change—it becomes a strange beast. Physical property can be observed and measured without any changes in molecular composition. It is most definatley chemical - here is the chem. 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