Recent content by tdod

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    Boiling point of ethers and alkanes

    2 reasons: 1) As an alkane or alkyl gets longer but does not branch, its BP increases b/c it can have more Van der Waals interactions; thus, ethyl-propyl-ether has a higher bp than ethyl methyl ether;;; hexane has a higher BP than pentance, etc. hope this helps.
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    When are oogenesis and spermatogenesis arrested until the onset of puberty?

    i made a mistake in my original post... the 1˚ spermatocyte actually does arrest. I'm not sure when.
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    Please make it possible to have instant email notification to forums

    I plan on becoming active in answering questions. Consequently, I would like to be instantly alerted (by email) when people post to certain forums. If possible, i greatly appreciate it.
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    Lenz's law: determining current direction

    http://img853.imageshack.us/img853/1150/n5pj.png I a can't seem to find out how to determine the direction the current will flow in... I would really appreciate an explanation. Thanks!
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    Is ∆E = q always true at constant volume?

    So, I know that at constant volume ∆E = q. However, at constant pressure ∆E = q + w. Therefore, shouldn't they be different?
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    Is ∆E = q always true at constant volume?

    True or False: "The Heat, q, at constant volume is equal to the change in internal energy, ∆E, for the process at constant pressure." I know that this is true, but i can't for the life of me figure out why. Can anyone explain? Thanks!
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    What pre-calculus needed for this calculus class?

    This quarter, I will take the course "Calculus for social sciences." Here's the description: "Introduction to differential and integral calculus with applications to modeling in the biological sciences," and "study of differential and integral calculus with differential and integral calculus...
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