Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Define the concept of the chemistry of a “permanent”—Making straight hair curly ?
Expert Solution
Step 1
Hair is made of keratin, which is also present in nails as well, In hair, keratin molecules are arranged in straight bundles. These bundles are held together by disulphide bonds (-S-S-), which has a function of giving strength to the hair. These disulphide bonds present in the hair strand is made up of an amino acid known as cysteine. The cysteine of one keratin molecule forms a disulphide bond with another molecule of cysteine of keratin.
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