Are hair straighteners a physical or a chemical change?

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Are hair straighteners a physical or a chemical change?

2006-11-23 07:59:19 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

4 answers

Hair straighteners, like perms, are chemical.

They break disulphide bonds between hair protiens, then reform them when the the hairs are straight, at the end of the process.

Straightening with just water only breaks and reforms the hydrogen bongs in hair, making it much less 'permanent'.

2006-11-23 08:07:50 · answer #1 · answered by Radagast97 6 · 0⤊ 0⤋

Depends on what kind of straightner you have. Flat irons are physical, perms are chemical.

2006-11-23 16:08:12 · answer #2 · answered by vampire_kitti 6 · 1⤊ 0⤋

chemical

2006-11-23 16:05:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋

physical

2006-11-23 16:01:11 · answer #4 · answered by Ellie 1 · 0⤊ 0⤋