Last minute Dr. Collins errata thread.

Started by harmonidrum
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harmonidrum

harmonidrum

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10+ Year Member
Stories of a flood destroying the world are_____ in ancient cultures, but few of them _____ the event to an angry god

Answer key says it's "trivial" and "relate"

Methinks "ubiquitous" and "attribute" would fit much more nicely...
 
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harmonidrum said:
Stories of a flood destroying the world are_____ in ancient cultures, but few of them _____ the event to an angry god

Answer key says it's "trivial" and "relate"

Methinks "ubiquitous" and "attribute" would fit much more nicely...
Click to expand...

I felt that Dr. Collins had it wrong. I mean its not uncommon.
 
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Trivial doesn't match.. totally agree.. but the second part does match..
Hope we don't get it anyway... My worest nightmare now is Chem.. There are lots of #s i am struggling with now, which I was not before. I think it's the stress kicking in..
 
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Here is another one that was giving me problems.

Brackish: Water :: Rancid:_____

Answer key says butter but wouldnt milk make logical sense? Seeing that milk is a beverage like water, and I've never heard of "rancid butter" before, although I do acknowledge that butter can go rancid, albeit very slowly.
 
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harmonidrum said:
Here is another one that was giving me problems.

Brackish: Water :: Rancid:_____

Answer key says butter but wouldnt milk make logical sense? Seeing that milk is a beverage like water, and I've never heard of "rancid butter" before, although I do acknowledge that butter can go rancid, albeit very slowly.
Click to expand...
I've heard of rancid butter more often than rancid milk. I think one typically refers to milk that's gone bad as spoiled, not rancid. 😕

Ha! Wikipedia to the rescue: http://en.wikipedia.org/wiki/Rancidification
I never realized rancid is a technical term. And butter does go bad; it creates butyric acid in the process, I believe.
 
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"why do the elements sodium and chlorine bond so readily?"

i thought it was a relatively easy question and put the answer "electron sharing caused by low ionization energy for sodium and high electron affinity for chlorine"

but the answer says low ionization energy for sodium and low electron affinity for chlorine is the theoretically correct answer .. could someone explain how this could be. thanks!
 
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Canadienne123 said:
"why do the elements sodium and chlorine bond so readily?"

i thought it was a relatively easy question and put the answer "electron sharing caused by low ionization energy for sodium and high electron affinity for chlorine"

but the answer says low ionization energy for sodium and low electron affinity for chlorine is the theoretically correct answer .. could someone explain how this could be. thanks!
Click to expand...

This question is horrible^^ even given Collin's rationale for the two answers, none of the answers make sense. Because ionic bonds involve transfer of electrons. The truth is that chlorine has a very negative electron affinity, and sodium has a low ionization energy. But the answer choice "low and low" is coupled with the "sharing of electrons".
 
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pharmschooler said:
I've heard of rancid butter more often than rancid milk. I think one typically refers to milk that's gone bad as spoiled, not rancid. 😕

Ha! Wikipedia to the rescue: http://en.wikipedia.org/wiki/Rancidification
I never realized rancid is a technical term. And butter does go bad; it creates butyric acid in the process, I believe.
Click to expand...

It is my understanding that both milk and butter can become rancid (or any comestible for that matter). Butter is derived from milk, hence is made of of the same constituents, so I do not understand how butter is a better choice when milk is a liquid, like water.
 
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harmonidrum said:
It is my understanding that both milk and butter can become rancid (or any comestible for that matter). Butter is derived from milk, hence is made of of the same constituents, so I do not understand how butter is a better choice when milk is a liquid, like water.
Click to expand...
Because rancidification refers specifically to fats going bad and butter has a much higher fat composition (obviously; it's pretty much all fat) than milk.

It's not as though milk cannot become rancid, just that butter is the better choice for an answer in this situation.

I do find it funny that you choose to write the word comestible instead of something more obvious, like food...it makes me laugh for some reason. Not picking on you; I just find it interesting.
 
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pharmschooler said:
Because rancidification refers specifically to fats going bad and butter has a much higher fat composition (obviously; it's pretty much all fat) than milk.

It's not as though milk cannot become rancid, just that butter is the better choice for an answer in this situation.

I do find it funny that you choose to write the word comestible instead of something more obvious, like food...it makes me laugh for some reason. Not picking on you; I just find it interesting.
Click to expand...
Agreed. Case closed!
 
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harmonidrum said:
It is my understanding that both milk and butter can become rancid (or any comestible for that matter). Butter is derived from milk, hence is made of of the same constituents, so I do not understand how butter is a better choice when milk is a liquid, like water.
Click to expand...

Rancid - (of foods containing fat or oil) Smelling or tasting unpleasant as a result of being old and stale.

Milk technically could be right, but butter is a better answer.

EDIT - sorry didn't realized this was already answered
 
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My question is...

precipitate: snow as satellite : _________

Snow is a type of precipitation, so I assumed "television" would be a good type of satellite. Instead the answer is: moon

How does that make sense?
 
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it's because the moon IS a type of satellite.

basically, a satellite is something that orbits something else, and the Earth's satellite is the moon. television is just an application of satellite technology; a television itself is not a type of satellite.

so since snow is a type of precipitate, the moon is a type of satellite

hope that helps!
 
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Here's one that I ran into. Might help those taking the PCAT in September.

Calculus : Trigonometry :: Painting : ________

Collins states the answer as "palette," but this question was on one of the practice PCAT tests and the correct answer was "sculpture". The reasoning behind this is that calculus and trig are forms of math; painting and sculptures are forms of art.
 
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