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.
It is both a physical and 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 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.
There is a bit of both. The processes of spinning and weaving are purely physical. Bleaching and dyeing are chemical.
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.
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.
It is both a physical and chemical change.
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 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.
These are chemical reactions (changes).
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
no. it is not a physical change because it is still hair. It did not change the DNA. But, if the question was if the pigment change was physical, then it would be because the pigment changed in order for the hair to be a lighter color.
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 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.
There is a bit of both. The processes of spinning and weaving are purely physical. Bleaching and dyeing are chemical.