Chemical change
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 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 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.
yes it is a chemical reaction, it oxidises the part where in you put in the bleaching cream.Actually to be honest with you the answer is no. Because my mom is a hair dresser I see people come in the shop with green but supposed to be blonde hair. So the real answer to your question is NO......
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.
It is both a physical and chemical change.
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.
first physical, second chemical
Bleaching is a chemical reaction.
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.
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". chemical change: you can't change it back to the old and it makes a new subtance. physical change:it does not make a new subtance and it is still the same object.
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.
yes it is a chemical reaction, it oxidises the part where in you put in the bleaching cream.Actually to be honest with you the answer is no. Because my mom is a hair dresser I see people come in the shop with green but supposed to be blonde hair. So the real answer to your question is NO......
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.
Yes, because it changes the composition of molecules in the hair.
These are chemical reactions (changes).
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.