While working in her garden one day, Petra pulled a weed and…

While working in her garden one day, Petra pulled a weed and was promptly stung by a bee that had been resting on one of its leaves.  Since this incident, whenever Petra pulls a weed, she feels anxious and stiff.  In this case of apparent classical conditioning, the conditioned stimulus is the: 

Cognitive and behavior therapist share a common and popular…

Cognitive and behavior therapist share a common and popular belief that maladaptive response tendencies are acquired through learning.    There are major differences of opinion, however, regarding assumptions about the precise nature of the maladaptive learning.  A good illustration of this distinction might be drawn from B.F. Skinner’s farewell address to APA just days before his death when he compared cognitive psychology to:

Shown below is a ring form of a monosaccharide along with a…

Shown below is a ring form of a monosaccharide along with a Fischer projection of its open chain form.  Is the ring form shown the alpha form or beta form? [ab] Is the ring form shown a furanose or a pyranose? [fp] Is this the L-enantiomer or the D-enantiomer? [dl] Is this an aldose or a ketose? [ah]

Consider the following reaction: NaOH (s) + HCl (aq) -> NaCl…

Consider the following reaction: NaOH (s) + HCl (aq) -> NaCl (aq) + H2O (l) ΔHrxn ​= −57.1 kJ How much heat is released when [x] g of sodium hydroxide (NaOH) reacts completely with excess hydrochloric acid (HCl)? Express your answer as a positive value in units of kJ using at least three significant figures.