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.
Bleach is a chemical. The process of bleaching something is a chemical reaction.
Chemical change
Moat of these products contain a peroxide, which decomposes and releases oxygen gas.
Bleaching is a chemical reaction.
Bleaching your hair is chemical change
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.
Bleach is a chemical. The process of bleaching something is a chemical reaction.
Chemical change
This action involve a chemical reaction.
Yes, because it changes the composition of molecules in the hair.
first physical, second chemical
the acids chemical reaction for hair dying is that your hair will blow up!
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.
Moat of these products contain a peroxide, which decomposes and releases oxygen gas.