Understanding Hair Chemistry

What compound is responsible for the smell often associated with perms?

• Nitrogen

• Chlorine

• Sulfur

• Ammonia

What type of bond in hair is altered during a perm to change its texture?

• Disulfide bond

• Hydrogen bond

• Peptide bond

• Ionic bond

Why are perms considered 'permanent'?

• They use heat to set the style

• They rely on weak hydrogen bonds

• They involve strong disulfide bonds

• They use temporary styling products

How do hydrogen bonds in hair react to moisture in the air?

• They break down completely

• They become stronger and permanent

• They have no reaction to moisture

• They form and break easily, causing temporary changes

What is the main reason hair becomes frizzy on humid days?

• Overexposure to sunlight

• Excessive use of hair products

• Lack of proper hair care

• Formation of random hydrogen bonds