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Prentice Hall Molecular Model Set For Organic Chemistry 2nd Edition
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Top Customer Reviews
After forgetting about it for many years, I recently found it again in a box in the attic and was thrilled to discover I hadn't lost it, or given it away, or burned it with all the rest of my school things. I had always got a huge kick out of playing with it in school, and of course, I started playing with it again immediately! Gotta admit, it's hard to put down - kinda like catnip for nerds, which I guess makes me one.
Memory Lane aside, it's a solid little set, and includes the following pieces:
28 Hydrogen (white)
14 Carbon (black)
8 Oxygen (red)
8 Chlorine (green)
4 Nitrogen (blue)
2 Bromine (orange)
2 Iodine (purple)
40 Single bonds (space-fill)
40 Single bonds (open)
12 Double bonds (open)
Of course, some of the pieces above can be used in a pinch to represent atoms that aren't listed, but I rarely (if ever? *scratch head*) found that necessary in my basic chem classes. Overall, it was an excellent tool, and well worth the somewhat inflated price. I can remember buying many a text book that cost many times more - few of which proved as helpful as this kit, and none of which were as entertaining.
If I had to cite a negative, I'd have to admit they were a bit stingy with the carbon molecules - and sadly, the only other pieces that rival carbon's chiral-yumminess are the nitrogens, which are also in short supply.Read more ›
Unfortunately, this kit is essentially useless for inorganic chemistry, and therefore also for general chemistry. Most freshman textbooks cover basic VSEPR theory up to 6-electron pairs (SF6), and introduce geometries like trigonal planar (BF3) and square planar (Ni(CN)4, XeF4). None of these geometries are possible with the pieces available in this kit. For Inorganic chemistry, these geometries are essential, and I've needed to use inferiorly constructed kits when trying to demonstrate these geometries in my general and inorganic courses.
The good news is that an equivalent to this kit is available for general and inorganic chem. The bad news is that it's $15 more expensive. But I would HIGHLY recommend this other kit for any chemistry, biochemistry, or geology major.Read more ›
It comes with 14 carbon "atoms", 4-holed black beads, and a collection of others: 2-holed oxygen, 3-holed nitrogen, and 1-holed hydrogen and halogens, all color-coded. The number of holes represents the typical valence of each atom type, but you can assign any meaning you want to the color code. Two kinds of connecting "bonds" plug into the beads: long flexible ones for stick models, and short ones that place the atoms butt up against each other for space-filling models.
The pieces snap together snugly, so the assembled models can stand a bit of rough handling. Someone with weak fingers might have a tough time pulling them apart, though. There are enough pieces to make lots of different models: sugars, amino acids, and other small, biologically important bits. I could ask for beads representing phosporus (needed for DNA) and sulfur (for aome amino acids), and there's always reason to want more of everything. Still, this is fine as a beginner's kit. And, as a desk toy, it lets you look like you're doing real work.
In other reviews there were a couple of complaints about the kit not being realistic. However, the bond stiffness and design are surprisingly realistic (molecules aren't all that flimsy). The kit is perfect for create virtually any small organic molecule. It is excellent for seeing the difference between a chair and boat conformation, provided that it is put together appropriately. (My organic book and the directions were useful in arriving at the right conformation when I had problems.) The kit may just take a little bit of time to get used to, but it definitely is worth the work and time to see molecules in 3-D!
Most Recent Customer Reviews
It takes some muscle to pull the pieces apart once you've put them together, but it's incredibly helpful for understanding molecules in 3D and how they rotate for 1st semester of... Read morePublished 7 days ago by Kiera
Excellent purchase fro anyone going into organic chemistry. Helps a lot!Published 1 month ago by Katharine Shaver
These were helpful during my Organic Chemistry class, but they were hard to take apart. We could use these during tests, but I was always nervous to use them because I didn't want... Read morePublished 3 months ago by Amazon Customer
Had extra pieces! Great, but the balls were hard to get apart at first.Published 4 months ago by Christina
I thought if I bought this I would get an A in the class, only passed with a C-, but got a job though after graduating so that's why it isn't a 1 star.Published 5 months ago by Erica
Just as advertised! Thanks for the prompt delivery.Published 5 months ago by William (Bill) Patrick
I liked the model set, but putting together the pieces was kind of exhausting because they are a little tight and hard to snap together.Published 5 months ago by Tatum