Pa Cosmetology Exam

Which is the chemical symbol for hydrogen peroxide? A. H2O B. H2O2 C. H2SO4 D. NaOH {Ans: B. H2O2}When giving a soft-curl perm, apply thio until hair on all rods is thoroughly saturated, then A. mist with water B. rinse excess thio C. drape the client D. replace saturated cotton {Ans: D. replace saturated cotton}Your client will most likely accept suggestions about hair color services when you A. begin by explaining the prices of all your services B. base your suggestions on the client's needs and lifestyle C. carefully explain the underlying chemistry of hair coloring D. show the client color photos of movie stars with the same color {Ans: B. base your suggestions on the client's needs and lifestyle}The occipital bone forms the back and base of the A. neck B. cranium C. upper jaw D. forehead {Ans: B. cranium}The hair cuticle is the A. outside layer composed of overlapping sheets of transparent protective cells B. middle pigmented layer composed of fibrous material C. innermost layer D. follicle from which the hair shaft emerges {Ans: A. outside layer composed of overlapping sheets of transparent protective cells}The pH of skin, hair, and scalp is in