Organic Chemistry Model Student Kit - (125 Pieces) - MM-003

This set is great.Its easy to start using and thr pieces are a nice set. While much bigger than my previous set and therefore probably not as mobile (like taking it to class). I really like this set. It can be taken to class without an issue just note that it is bigger than some sets.It works great in building molecules and single bonds are easily rotated.I have weak hands and while I stuggled at times with the oxygen (red) atoms connecting and the double bonding. I was still able to get it together and it became easier.I WOULD RECOMMEND this set for chemistry organic chemistry and even studying for MCAT. I think this set would even work great for instructors since the pieces are decent size and can be seen fairly well from a distance. My 4 year old even likes playing with pieces lol. Although he thinks its just a building toy. But that just goes to show how easy it is to assemble and disassemble since a 4 year old can do it.I am considering buying the bigger set for him so he can play with that one and I can keep this one since it is sufficient for what I am using it for.

I purchased this Molecular Model set for a college level chemistry II course, which I will follow with organic chemistry I and II. My university uses this same brand in the lab and in the classroom. The ones at the university are old and still function very well. I have to memorize the names and how to draw the Lewis structures of several molecules. This kit really helps me to understand Lewis structures and molecular geometry. Molecular geometry is very hard to understand in 2D, but is easy to visualize in 3D. The kit simulates S and P orbitals very well. This kit has greatly helped me to remember how to draw those structures because I have learned to build them from memory. It's like a toy for my inner child and it makes chemistry fun! It is made of sturdy durable construction and all the parts are large which makes them easy to retrieve if dropped. I wish I'd had one since middle high school chemistry. Every serious student of chemistry should get one. I know It will be helpful into my professional career.

I purchased this model set after taking organic chemistry 1, and I am thus far very pleased with it. The set comes with everything shown in the pictures (see the photo of the inside of the box lid for a breakdown of the pieces) and works as described.My Purchasing Purpose: As a chemical engineering student, I wanted to have a good ball-and-stick model for visualizing molecules in future chemistry and engineering classes. I purchased another model set before organic chemistry 1, but after little use the connections began to fall apart after being assembled. I would highly recommend buying this set or another comparable model for all students taking organic chemistry 1.Pros: The set has both ball-and-stick and space-filling modeling capabilities. The pieces completely remain together after being assembled, and, although pulling the connections apart requires a little force, dis-assembly is relatively easy (especially with the "molecular tool" included). When I purchased it, the set was priced lower and contained more pieces (including carbon atoms) than competing products. The plastic pieces appear to be of relatively good quality, and I anticipate that they will last for several years to come. I also received very good customer service.The set is excellent for learning topics such as isomerism, conformations, stereochemistry (chirality, enantiomers vs. diastereomers, Fischer projections) etc. All of these topics pertain to the connectivity and 3D spatial arrangement of atoms in molecules. Also, although double and triple bonds are made by connecting sp3 hybridized carbons with flexible rubber pieces (this was a complaint on a previous review), the model successfully demonstrates free rotation about single and triple bonds and inhibition of rotation around double bonds, which IMO is the most important part of modeling double/triple bonds.Cons: Unfortunately, the model does not work well for demonstrating cyclohexane conformations and chair flips, because rotating single bonds in cyclic structures is rather difficult. However, this would likely be the case for any ball-and-stick model on the market of these physical dimensions. Also, although the box is well divided into four compartments, the dividing walls do not extend to the top of the box, so the connecting pieces will tumble into other compartments when the kit is transported (I solve this issue by just placing the connectors in a zip-lock bag). Furthermore, the lid does not clip to the box very securely, so it may fall off if turned upside down (again solved with a zip-lock bag). The kit only comes with 14 carbon pieces, which for my purposes usually suffices, but if you want to build larger molecules you will obviously need another set.

I needed to purchase a molecular building kit for my organic chemistry class, but the one offered in the campus bookstore was $81, so I decided to check Amazon first. I found this kit and purchased it. It's a really good kit and more than covers the needs I have for my class. Pieces are easy to assemble and disassemble and a tool is included to help remove parts. It comes in a hard plastic case that stays closed, which is excellent for me since it's bouncing around in my book bag all day. All of the parts are bagged separately in the box and it has compartments for everything to stay organized. The seller sent an email providing instructions for use after I purchased and another email asking if I had any problems with my purchase, which I thought was very nice of them to do. All in all, it's a good kit, much more affordable than others out there, and is really good for my needs in Organic Chemistry I. It's also a god set for anyone just looking to build molecular models. I started playing around with it the day I got it.