99% isopropyl alcohol is not an __________ registered disinfectant . - EPA A.B Moler is important in the history of barbering because he: - Published the first barbering textbook According to current trends, barbers must be prepared to meet a variety of _________ preferences. - Male Acids and alkalis mixed together in equal proportions do what? - Neutralize each other The adjustable lamp on a manicuring table should have a _______ watt bulb. - 40 After tools are sanitized, they should be stored in: - a clean and closed container Alkalis have a pH of about 7.00 and they _______ and _________ the hair. - Soften and swell An altering and interrupted current that proceeds a mechanical reaction with no chemical effect is the _____________. - Faradic Current Amino acids are joined end-to-end by ______________. - Peptide Bonds Amino acids are joined together by end bonds form a _____________. - Polypeptide Chain