If the sheet is turning into a pillowcase, it would be a physical change. The sheet is not changing anything but its shape to become a pillowcase, and it most likely can be reversed to turn back into a sheet.
Bleaching your hair is a chemical change. The bleach reacts in hair, removing the color in an irreversible chemical reaction. There is no way to reverse the bleaching. Bleaching your hair also makes a new substance, when you do bleach your hair it is permanent.
Bleaching your hair is a chemical process, not a physical property. The chemicals in hair bleach work to break down the natural pigments in your hair, resulting in a lighter color. This change is due to a chemical reaction rather than a physical characteristic of the hair itself.
Bleaching skin is a chemical change because it involves a reaction with the skin's melanin pigment that alters its chemical structure to appear lighter in color.
Bleaching hair is a chemical process. It involves the use of chemical compounds, like hydrogen peroxide, to break down and remove the natural pigment in the hair shaft. This changes the hair color by lightening it.
It is a pbysical change because its still the same thing. For example if i take a person named Tyler and paint his nails black and a black trench coat on, and dye his hair purple and cut it into a mohak, its still same old Tyler! Do u get it?
These are chemical reactions (changes).
It is both a physical and chemical change.
Bleaching your hair is a chemical change. The bleach reacts in hair, removing the color in an irreversible chemical reaction. There is no way to reverse the bleaching. Bleaching your hair also makes a new substance, when you do bleach your hair it is permanent.
Bleaching your hair is a chemical process, not a physical property. The chemicals in hair bleach work to break down the natural pigments in your hair, resulting in a lighter color. This change is due to a chemical reaction rather than a physical characteristic of the hair itself.
Bleaching skin is a chemical change because it involves a reaction with the skin's melanin pigment that alters its chemical structure to appear lighter in color.
first physical, second chemical
Bleaching clothes is primarily a chemical change because it involves a chemical reaction that alters the fabric's color by breaking down pigments. This process typically involves the use of bleaching agents, such as hydrogen peroxide or chlorine, which change the molecular structure of the dye. While the physical appearance of the fabric changes, the underlying chemical composition is also modified, making it a chemical change.
Bleaching is done by oxidising chemicals like hypochlorite (bleaching powder) or peroxides. So it is a chemical change(called reaction): the stain is not (only) dissolved, but (rather) broken down to colorless molecules.Additions to this answer are on the discussion area.
Bleaching tiles is primarily a chemical change. This process involves the application of bleach, which reacts with stains and discoloration on the tiles, breaking down the compounds causing the discoloration. Unlike a physical change, which only alters the appearance without changing the chemical composition, bleaching results in new substances being formed as the original stains are chemically altered.
Yes, because it changes the composition of molecules in the hair.
Bleaching hair is a chemical process. It involves the use of chemical compounds, like hydrogen peroxide, to break down and remove the natural pigment in the hair shaft. This changes the hair color by lightening it.
Luster is a physical property, not a chemical change. Luster refers to the way light interacts with the surface of a material, causing it to either appear shiny or dull. It does not involve any alteration of the chemical composition of the material.