There are a few free programs available that allow you to construct your own molecular models on your computer. This is very helpful for visualizing 3D structures, and can be helpful with visualizing symmetry operations.

Avogadro is available for Macs and PCs.

Chem3D is part of the ChemBioDraw Ultra package, for PCs only.

Review electron counting and do practice problems.

http://www.ilpi.com/organomet/electroncount.html

This website focusing on the “neutral ligand formalism” or MLX convention has some interesting case studies and introductory notes.

http://www.covalentbondclass.org

A Java applet to practice setting up Hess’ Law problems.

http://www.bpreid.com/deltaH.php

An overview website containing a variety of interactive symmetry tools.

http://www.reciprocalnet.org/edumodules/symmetry/index.html

Two review websites covering metallic and ionic solids.

http://www.chem.fsu.edu/chemlab/chm1046course/solids.html

http://www.chem1.com/acad/webtext/states/crystals-cubic.html

Please click “read more” and rate this resource: Read More →

A large collection of rotatable, interactive structures. From small molecules to metallic or ionic solids, this collection may have the molecule you are trying to see in 3D.

http://www.chemtube3d.com

Please click “read more” and rate this resource: Read More →

Make your own 3D lattices using simple “origami”. (Tape required, unfortunately.)

https://www.ionicviper.org/system/files/LatticeSystemsOrigami-templates.pdf

Please click “read more” and rate this resource: Read More →

An overview video on reduction-oxidation (redox) reactions.

Link: https://www.youtube.com/watch?v=lQ6FBA1HM3s

A massive compendium of elemental information. Nuclear abundance, periodic trends, fun facts about elements… it’s all here.

https://www.webelements.com

Please click “read more” and rate this resource: Read More →