High School Chemistry CD-ROM

Produced by ETC Exceptional Teaching Concepts, Canada.

Student version US$49 I Individual Licence US$105 I Classroom of 10 users Licence US$380 I Site / School Unlimited US$700 Air shipping chargeable US$25

EduChem HS Upgrade pricing for existing users: from Individual to Classroom of 10 users US$330 / from Classroom of 10 users to Unlimited US$410 / from Individual to Unlimited US$680

For Singapore Schools full demo cd-rom can be provided on a sale or return basis

Periodic Table of Contents
A Table of Elements can display elements very sophisticated and yet easy to use Periodic according to five different periodic table mapping: Groups; Temperature; Metal status; Discovery status; and Biological Activity. Properties that can be displayed include: Atomic mass, Atomic volume, Atomic radius, Ionic radius, Electronegativity, Ionization potentials, Discovery date, Melting and Boiling points, Electron filling shells, and many more. Group colours can be easily changed. A single click using your mouse will choose the element, and a double click will display all the element properties.Atomic properties can be plotted for all elements or just selected ones. The size of the atoms can be compared by choosing a graphical display of radii as disks proportional to actual atom or ion sizes. Radii can be displayed as disks so that atom sizes can be compared. You can change the viewing date and see which elements were known at the time. The temperature can be changed and the states of the elements inspected at different temperatures. Periodic Table of Elements has an extensive on-line help available at all times to etc

Molecular Database

There are many molecules and structures included in the Database in three libraries: Molecules, Crystals and Proteins. Inorganic molecules include oxides, chlorides, salts, acids, etc. All the VSEPR shapes are presented. Organic molecules include major hydrocarbons, ethers, amines, amides, aromatic hydrocarbons, fused rings, and many other organic molecules. There are over 350 molecules in this library. Crystals contain examples for all crystal types. There are 64 different crystals in this library. Proteins library include collagen, hemoglobin, insulin, and many other proteins and hormones. Amino and nucleic acids, DNA molecule, as well as other biomolecules, like fat or sugars, are also included. Records can be changed or deleted and new records can be added. Molecular formula and molecular weight are automatically displayed when molecule is selected. Select any molecule and paste it into the Viewer or into the Builder for further manipulation. An extensive on-line help is available at all times to etc

Molecule Builder

Any molecule can be easily built using Molecular Builder. Many templates are available, like rings or VSEPR shapes, user defined angles and distances, to build any molecule. Then simply save the file or paste into the Viewer or Database. Templates include: singly bonded groups, multiply bonded groups, organic rings, VSEPR shapes, metallic groups and adding any individual atom from the Periodic Table. Bonds can be changed or added, bond angles and dihedral angles can be changed. Users cannot build incorrect structures before allowing elements to have all valences. Charges on atoms can be set. Users can define their own building groups and templates. An extensive on-line help is available at all times to etc

Molecule Viewer

The Molecule Viewer can display 3D molecular structures in many different rendering modes. Available renderings are: Lines, Balls and Cylinders, Balls, Overlapping Spheres, and a special Lewis Dots rendering. Size of balls and spheres can be changed, as well as the cylinders and lines width. In Lewis Dots rendering the position of electron pairs is calculated according to the VSEPR theory, and the position of the bonding pair depends on atom electronegativities. Shading is available for Balls, Balls and Cylinders, and CPK rendering, for high quality representations. Molecules can be easily manipulated, size of the molecules can be determined, molecular weights can be calculated, and molecular geometry inspected (distances, bond angles and dihedral angles). Single, double, triple, aromatic, hydrogen and metallic bonds can be viewed even in Balls and Sticks rendering. An extensive on-line help is available at all times to etc

Orbital Viewer

The orbital viewer displays hydrogenic atomic orbitals for principal quantum number up to 5 and azimuthal quantum number up to 3 (s, p, d, and f). The orbitals are displayed as 3D isosurfaces using a variety of rendering methods and can be rotated and translated in the viewer window. Some orbital properties (number of nodes and radial distribution, for example) are displayable. It is very flexible and for example, the interiors of orbitals can be viewed. On-line help is available at all times to etc The full-blown Orbital Viewer will be available in EduChem and is coming soon. It will have the capability to display molecular orbitals and surfaces, as well as some common hybrid orbitals

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