Are hair cuts a physical or a chemical change?
915926
just cutting the hair is a physical change\n\ndyeing the hair is a chemical change\n\nhope this helps!
607735
If heat has been added to an element, it may make a chemical reaction.  If some object's physical properties due to heat or cooling, a chemical reaction may have occurred.  For example, a fire burning wood creates a chemical reaction in the wood.
784372
The other name for a chemical change is a permanent change.This is because once a chemical change has taken place we cannot obtain the reactants back from the products formed during this change.\nexample=burning of wood to produce ash.We cannot get back the original wood from the ash that has been formed during this change.
663469
A physical change is reversible, a chemical change is not.  Using that information you should easily be able to figure out your question.\nBut yes, it is\na)chemical\nb)physical\nc)chemical\nd)physical
591117
The physical quantitative changes in response of a chemical change is Smetry.
1090274
Which hair did she cut?
1069277
d) condensation is a physical change not a chemical change, solid to liquid, gas to solid, any of those are not chemical changes.
519472
If you consider your hair part of your health, yes..\nYou're using chemicals on your body, of course there is an impact...\nHow strong depends again on the individual body constitution of the person..
290614
chemical reaction\n\nall substance give off some heat during change\n\nlook up kinetics on the web
255271
Yes you are correct.Different substances are different because of  their molecular structure and the constituents of each molecule. Molecules are well bound together in solids than in fluids (gases and liquids). The molecules are free in gases.\n Further the molecules are not at rest and are in vibrations.When the substance is heated  the average energy of a molecule  increases which tend to decrease the bindings of the molecules.\nGenerally by heating , a substance  chnges from solid to liquid and then to gaseous state.We call this as physical change.\nWhen the energy is  strong enough to break the  molecules into its constituent elements new compounds are produced we call it as chemical change.\nIn effect heat  has many things to do with their bondings
640267
Actually no, hair testing is very reliable,  trace elements and the amount of these elements will prove very well even about how long it has been.\n\nA good lab will know the difference. And it also matters which drugs they are testing for, which method is best to use.
753382
chemical change is something that changes the substance, like when fire burns paper, the paper ACTULLY TURNS unto ash\nphysical change is a hange that only affects something physical, like ripping the paper to make it smaller
745742
hydrogen peroxide in hair bleadh H2O2 acts as a proton donor and acid the hair must act as a base and create a neutral solution
47160
You don't. That's a myth. You just get the same amount of hair with the same thickness you had before. It just looks different because it's cut differently.
1135425
Your question is not specific!  There are so many "chemical changes", which one are you speaking of?  Sometimes, nothing happens, and, therefore, nothing is released!  Therefore, your question needs qualification!  Which chemical change?
43544
hair and nails don't hurt when we cut them because they are external parts of our body that are dead.  I had asked my beautician this one a while ago, and that was her answer in short. Basically, they no longer have blood flow.  There aren't any nerves that are attatched to them.
205430
Nope. No change in the chemical composition of the molecules