If you are a teacher and would like to use BPReid applets on computers in a classroom without Internet access or if you are a student and would like to purchase the applets for your own educational advantage, you can get the complete collection for as little as $25. ChemZephyr has no advertising; it only has applets:

• Periodic Puzzle Applet
• VSEPR Applet
• Qualitative Analysis Applets (cations, anions, redox)
• Data Analysis Applets (Linear Least Squares, Kinetics)
• Quantum Mechanics Applets (Wave Superposition, Particle in a Square, Spherical Harmonics)
• Spectroscopy Applets (Meterstick spectroscope simulation, Hydrogen Energy Level diagram, Electrons in a box, Spectral Colors)
• Thermodynamics Applets (Enthalpy Puzzles, Pressure-Volume Isotherms, Carnot Cycle)
• Kinetics and Equilibrium Modeling Applet
   

Site Licenses for Applet Packages

If you are interested in using specific applets at your institution, you may purchase a site license for one or more applet packages.  A site license allows use of the applets in the package on an unilimited number of local computers or on an intranet or internet page. 

Package Delivered via download	Site License Price	Purchase Online
General - Periodic Puzzle and VSEPR	$50.00
Periodic Puzzle (in English and French)	$25.00
Qualitative Analysis - Anion, Cation, and Redox Puzzles (Includes True Unknown Key)	$50.00
Data Analysis - Least Squares and Kinetics Plot	$50.00
Quantum Mechanics - Spherical Harmonics, Particle in a Square, Wave Superposition, Electrons in a Box	$50.00
Kinetics - Kinetics Plot and Kinetics Modeling	$50.00
Spectroscopy - Meterstick Spectroscope, Hydrogen Energy Levels, Spectral Colors, Electrons in a Box	$50.00
Thermodynamics - Enthalpy Puzzles, PV Isotherms, Carnot Cycle	$50.00

Qualitative Analysis True Unknown Keys

Instructors wishing to use the "True Unknowns" feature in the anion and cation qualitative analysis applets may purchase the keys to the True Unknowns. This feature will allow you to assign your students determinations of unknowns using the virtual Lab Bench. The Qualitative Analysis applet will not reveal the identity of the True Unknown to the student, but, with the key, the instructor can determine the ions in each True Unknown.

Item	Price	Purchase Online
Qualitative Analysis True Unknown Keys	$25.00

Note: Available only to instructors. The keys are subject to strict copyright protection. Individuals purchasing the keys are expressly prohibited from distributing copies.

Prices includes tax, handling, and shipping in the US. Contact BPReid for shipping costs outside the US. US funds only. Use the Buy Now or Add to Cart buttons above to pay by credit card or using a PayPal account. You will go to a secure PayPal site to enter your shipping and credit card information. You do not need a PayPal account to order online through PayPal. Or send check or money order payable to Brian P. Reid, to:

BPReid 2 Kingsford Road Hanover, New Hampshire 03755 USA

Purchase orders from educational institutions are also welcome.

Other Applet Options and Information

If you have your own web site related to chemical education, you can incorporate BPReid applets right into your pages. BPReid offers site licenses to use applets on your own site as well as limited-use and individual licenses.

• Many of the applets have options including background colors and puzzles.
• Applets come with detailed instructions, a password, class files (compiled Java code), data files, and sample HTML files that can be incorporated into your web site.  
• There is an unconditional 45-day money-back warranty on all applets.
• Source code and printed manuals are also available at additional cost to those who wish to modify or maintain the applets themselves.  
• Applets have been developed using Java 1.0 features.
• Applets labeled with version numbers higher than 1.0 have been successfully tested with Internet Explorer v4, v5, or V6 and Netscape Navigator v4 for Windows and MacOS.
• All applets are protected by copyright laws.

To request further information, custom programming, make a comment or suggestion, just fill out this form or send email to . We will get back to you as soon as possible.

To purchase Diatomic contact Trinity Software at www.TrinitySoftware.com or 1-800-352-1282.