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Is cutting hair a chemical change or physical change?
Cutting hair is a physical change because it does not alter the chemical composition of the hair. The cutting process only changes the physical appearance and length of the hair without changing its chemical structure.
Is cutting your hair a reversible or irreversible physical change?
Cutting your hair is a reversible physical change because it can grow back over time. The structure of the hair is not permanently altered by cutting it.
Is perming hair a chemical change or a physical change?
I think it is a physical change Improvement: It's actually a series of chemical changes. As different chemicals are added they break and make bonds within the protein make-up of the hair.
What type of change is cutting bread?
Cutting bread is a mechanical or physical change, not a chemical change.
Is cutting your fingernails physical or chemical change?
Cutting your fingernails is a physical change because the composition of the material (keratin) remains the same before and after cutting. A chemical change involves a change in the chemical composition of a substance.
Is cutting your hair a chemical change or a physical change?
cutting your hair is probably a physical change I don't know
Is cutting hair a chemical change or physical change?
Cutting hair is a physical change because it does not alter the chemical composition of the hair. The cutting process only changes the physical appearance and length of the hair without changing its chemical structure.
Is cutting your hair a reversible or irreversible physical change?
Cutting your hair is a reversible physical change because it can grow back over time. The structure of the hair is not permanently altered by cutting it.
Is cutting hair an example of a physical change and why?
Yes, cutting hair is an example of a physical change. It involves altering the appearance or state of the hair without changing its chemical composition. This change is reversible, as the hair can grow back.
which of the following is an example of a physical change?
Cutting your hair
Is cutting your hair a physcial change?
Yes it is... The hair will grow back,but you're changing the physical appearance by cutting it. Chemically - it's still hair.
Is cutting hair physical or chemical change?
With scissors: definetely physical, you don't cut the molecules in hair themselves
Is cut hair physical change?
Yes, cutting hair is a physical change because it alters the appearance of the hair without changing its chemical composition.
Is perming hair a chemical change or a physical change?
I think it is a physical change Improvement: It's actually a series of chemical changes. As different chemicals are added they break and make bonds within the protein make-up of the hair.
Is mowing the a lawn physical change?
Mowing the lawn is a physical change. Cutting your hair isn't a chemical change, it's still hair, and it will grow back :) Chemical changes alter the identity of a substance, whereas physical changes do not.
Why cutting of hair is an irreversible change?
Cutting of hair is considered an irreversible change because once the hair is cut, it cannot return to its original state. The physical structure of the hair is altered by cutting, and the length that is removed cannot be reattached to the hair follicle. Additionally, the chemical composition of the hair remains the same after cutting, so the process cannot be reversed.
What is a physical change that can be done to hair?
Cutting hair and shampooing hair are purely physical changes. However curling or straightening hair involve chemical changes too (i.e. sulfur crosslinks move). Dyeing hair is also chemical.
