Because the liquid film that lines the alveolus resembles a…

Because the liquid film that lines the alveolus resembles a bubble or sphere, according to ___________ law, when the alveolar fluid is permitted to behave according to its natural tendency, a __________    ______________ pressure must be generated to keep the small alveoli open.

The antidepressant medication Celexa is a racemic mixture of…

The antidepressant medication Celexa is a racemic mixture of two stereoisomers, but only (S)-citalopram has the therapeutic effect. A stereochemically pure preparation of (S)-citalopram is sold under the trade name Lexapro. Which is true about the medications?