Chemical change
Bleaching your hair is 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.
chemical
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 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......
Bleaching your hair is chemical change
It is both a physical and chemical change.
first physical, second chemical
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 is a chemical reaction.
chemical
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.
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.
Yes, because it changes the composition of molecules in the hair.
These are chemical reactions (changes).
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......
There is a bit of both. The processes of spinning and weaving are purely physical. Bleaching and dyeing are chemical.