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Snap 1

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The 52 snap cards refer to the following sets of compounds

• C₃H₈ (propane)
• C₄H₁₀ (butane and and its isomer methylpropane)
• C₅H₁₂ (pentane and its two isomers)
• C₆H₁₄ (hexane and its four isomers)
• C₄H₈ (the various isomeric butenes, methylpropene and the isomeric cycloalkanes)
• C₃H₆O₂ (propanoic acid and its isomeric esters)
• C₄H₈O₂ (butanoic acid, methylpropanoic acid and their isomeric esters)

A snap occurs for pairs of cards showing either the same compound (by name or formula) or compounds that are isomers of one another (again by name or formula).

A full set of snap cards can be printed out for private study.

In the game you can set the delay before the computer spots any snaps from 0 seconds (impossible to beat) to 10 seconds (easy to beat if you know any organic chemistry). If you beat the computer, you will be given a clearance code and the chance to print out a clearance certificate. This will say give details of how many snaps you missed and what delay you had the game set on.