The CN Tower-A history of firsts / La Tour CN-Les grandes premieres-PremiÃ¨res: duration 111. seconds
CDA Technical Institute (CDA), formerly Commercial Diving Academy, is a federally accredited school. The second factor for a prospective student to consider is the additional accreditations the school offers. The Association of Commercial Diving Educators (ACDE) offers both an accreditation and a certification.
Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O. Commonly abbreviated Ac 2 O, it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis.cetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O. Commonly abbreviated Ac 2 O, it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis.