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• you breathe in 6.0 l of pure oxygen at 298 k and 1000 kpa to fill your lungs. how many moles of oxygen did you take in? use the ideal gas law: pv = nrt where r=8.31 l−kpa/mol−k responses 0.05 mole 0.05 mole 0.41 mole 0.41 mole 2.42 moles 2.42 moles 20.0 moles
  
• which conditions in northern europe encouraged emigration between 1845 and 1860?
  
• what are the three levels of cultural complexity that sociologists use to study different cultures? for example, if we look the concept of greetings in american culture, the first level would be the actual greetings, like saying ""hi"" to a good friend. the second level would be to look at all of the greetings as components of a bigger idea, and the third level would be the whole concept of applying those greetings in different settings, the big picture of the original tool, act, or belief.
  
• which three of these developments were major effects of european colonization in africa?
  
• in chickens, a flat single comb is a recessive trait, while the short, thick rose comb is dominant. in a particular population of chickens, 45 are homozygous for the dominant trait, 30 are heterozygous dominant, and 25 have the recessive trait. which expression is the correct way to calculate the frequency of the recessive allele? a. b. c. d. e.
  
• brian took eight years to pay off his $71,900 loan. the loan had an interest rate of 8.16%, compounded quarterly. if brian paid quarterly and made the same payment every time, how much was each payment that he made? a. $2,342.66 b. $3,081.54 c. $1,022.28 d. $1,466.76
  
• what is one possible disadvantage of hearing the characters’ voices in the theater as opposed to silently reading the scene? readers are unable to envision for themselves the setting of the room in which the county attorney and mrs. hale are talking. readers are unable to visualize for themselves the movements of the county attorney and mrs. hale. readers are unable to make inferences for themselves about the emotions and motivations of the county attorney and mrs. hale. readers are unable to create their own voices for how the county attorney and mrs. hale might sound live.
  
• an identity thief watches someone enter a 4-digit pin and manages to see the first two digits. if the thief tries guessing the pin, how many possibilities would there be?a.81b.90c.100d.200
  
• which of these events marked the beginning of the french revolution? napoleon’s victories in italy and egypt the overthrow of the french monarchy napoleon’s election as first consul the end of the reign of terror
  
• what is used to generate interference patterns in order to produce a hologram? shadows spectrometers lasers prisms